Generally speaking, automotive series components, and some parts with sealing requirements, usually put forward the concept of contour size requirements.
Basic requirements for plastic injection molded part designJasmineHL
Plastic Part Design Basic Requirements
Unreasonable design of plastic injection molded parts often results in some inherent defects in the product. For example, the structure of the parts is unreasonable, the parts use too much material, etc. Here are a series of basic requirements for plastic injection molded parts design for reference.
What is progressive stamping die?
Progressive stamping is a metalworking method that can encompass punching, coining, bending, and several other ways of modifying metal raw material, combined with an automatic feeding system. The feeding system pushes a strip of metal through all of the stations of a progressive stamping die.
The progressive stamping die refers to a cold stamping die that uses a strip of stamping raw material to complete multiple stamping processes simultaneously with several different stations on one die in one stamping stroke, and the material strip moves at a fixed distance once for each stamping stroke until the product is finished.
Basic requirements for plastic injection molded part designJasmineHL
Plastic Part Design Basic Requirements
Unreasonable design of plastic injection molded parts often results in some inherent defects in the product. For example, the structure of the parts is unreasonable, the parts use too much material, etc. Here are a series of basic requirements for plastic injection molded parts design for reference.
What is progressive stamping die?
Progressive stamping is a metalworking method that can encompass punching, coining, bending, and several other ways of modifying metal raw material, combined with an automatic feeding system. The feeding system pushes a strip of metal through all of the stations of a progressive stamping die.
The progressive stamping die refers to a cold stamping die that uses a strip of stamping raw material to complete multiple stamping processes simultaneously with several different stations on one die in one stamping stroke, and the material strip moves at a fixed distance once for each stamping stroke until the product is finished.
A case study in designing automotive lamp mold with its dimension.
---------
Bluestar Mould Group
Homepage: http://bluestar-mould.com
Plastic Injection Mold Making & Plastic Part Production
A Case study for near net Shape – Flashless forging for full yoke (Sleeve Yo...IJMER
Forging is a metal forming process commonly used in industry. Forging process is strongly
affected by the process parameters. In a progressive press forging process, an initial block of metal
(billet) is compressed between two dies halves in each stage to produce a complex part. The shape of
the initial billet is crucial in achieving the desired characteristics in the final forged part. The
metallurgical property as well as the geometry of the final product are strongly dependent on the shape
of initial work piece as well as on the perform shapes at each of the subsequent forming stages. The
major issue, which restricts imparting large deformation to the billet are the tensile stress, which later
results in cracking. Bulge is also undesirable from near net shape manufacturing point of view, as it
will require secondary processing like trimming Traditionally, an experienced designer uses his or her
expertise and design data handbooks for optimizing the initial billet shape. Design of the optimum
preform for near net shape forging is a crucial step in the design of many forging products In this study,
the same is arrived at using profile map, which is generated using the results of FE simulations of
varying geometrical and processing parameters.It is shown that preform map offers a powerful tool for
near net shape forging
The process of hardening steel using heat treatments, annealing and quenching can produce scale and blackening on the surface. In addition to cleaning and polishing the surface, steel parts often also need to be deburred.
Injection mold is a tool for producing plastic products; it is also a tool for giving plastic products a complete structure and precise dimensions. The structure of the injection mold and the quality of mold processing directly affects the quality and production efficiency of plastic parts. The most common and most common causes of injection mold failures and troubleshooting methods in the production of injection molds and plastic products are described in detail as follows:
What is the standard injection mold development process?JasmineHL
Before drawing the final assembly drawing of the mold, the process drawing should be drawn up, and it should meet the requirements of the workpiece drawing and process data. The size guaranteed by the next process shall be marked with the words "process size" on the drawing. If, after molding, no other machining is performed except for repairing burrs, the process drawing is exactly the same as the workpiece drawing.
Continuous drawing die -dgmf mold clamps co., ltdJasmineHL
There are many types of products in the mold industry, of which the stretch mold is one of the higher technical content. The reason why the drawing mold is difficult is that 1, the calculation of the design, and the test work 2 after the mold design is completed.
A mold is an industrial product that shapes a material by a certain structure in a specific structure, and is also a production tool capable of mass-producing industrial product parts having a certain shape and size requirement. Large to airplanes, cars, small cups, nails, almost all industrial products must rely on molding. High precision, high consistency, and high productivity of parts produced by mold are unmatched by any other processing method. Molds largely determine quality, efficiency and new product development capabilities of product. Therefore, mold has honorary title of “Mother of Industry”.
Reasonable product design and mold design are key technologies that affect the success of injection molding. This article introduces some basic principles of injection molded product design and mold design.
1. The basic conditions of plastic product design
1.1. Record the product usage conditions as detailed as possible.
These conditions are:
A. Use environment
Outdoor conditions (sunlight, rain, ice, snow, dust), sunlight (ultraviolet rays, radiation, etc.), contact with gas (corrosive gas, water vapor), contact with liquid (water, detergent, oil, medicine, etc.), other (plasticizers), copper);
B. Use intensity
Common temperature, maximum temperature, minimum temperature (usually, special circumstances, outdoor, warehouse, window, car, etc.), repeated cold and hot
C. Use load
Common load, maximum load (normal, special circumstances. Static, dynamic, repeated, continuous, impact, drop, etc.).
Five elements of injection molding process parametersJasmineHL
The injection molding process is one of the four major plastic molding processes. The barrels, basins, toys, and other daily products we use in our lives are all formed by the injection molding process. So what are the important factors to pay attention to in the plastic injection molding process?
The completion of the injection molding process generally requires six processes of clamping, filling, holding pressure, cooling, demolding, and opening the mold. In these six processes, we must remember these five elements, namely pressure, speed, position, temperature, and time.
Mold clamp tools definition
What is mold clamp? The mold clamp (also called mould clamp) is a kind of auxiliary clamping unit often used in injection mold processing, its main function is to keep the machined parts not shaking not moving in the processing.
What are the key points of precision injection moldingJasmineHL
Precision injection molding is affected by many related factors and environmental conditions, and the most basic are the four basic factors of plastic materials, injection molds, injection molding processes, and injection molding equipment.
In the early stage of designing plastic products, engineering plastics with corresponding performance requirements should be selected according to the application environment.
Secondly, the appropriate injection molding machine should be selected according to the selected plastic material, finished product dimensional accuracy, part weight, quality requirements, and expected mold structure.
A case study in designing automotive lamp mold with its dimension.
---------
Bluestar Mould Group
Homepage: http://bluestar-mould.com
Plastic Injection Mold Making & Plastic Part Production
A Case study for near net Shape – Flashless forging for full yoke (Sleeve Yo...IJMER
Forging is a metal forming process commonly used in industry. Forging process is strongly
affected by the process parameters. In a progressive press forging process, an initial block of metal
(billet) is compressed between two dies halves in each stage to produce a complex part. The shape of
the initial billet is crucial in achieving the desired characteristics in the final forged part. The
metallurgical property as well as the geometry of the final product are strongly dependent on the shape
of initial work piece as well as on the perform shapes at each of the subsequent forming stages. The
major issue, which restricts imparting large deformation to the billet are the tensile stress, which later
results in cracking. Bulge is also undesirable from near net shape manufacturing point of view, as it
will require secondary processing like trimming Traditionally, an experienced designer uses his or her
expertise and design data handbooks for optimizing the initial billet shape. Design of the optimum
preform for near net shape forging is a crucial step in the design of many forging products In this study,
the same is arrived at using profile map, which is generated using the results of FE simulations of
varying geometrical and processing parameters.It is shown that preform map offers a powerful tool for
near net shape forging
The process of hardening steel using heat treatments, annealing and quenching can produce scale and blackening on the surface. In addition to cleaning and polishing the surface, steel parts often also need to be deburred.
Injection mold is a tool for producing plastic products; it is also a tool for giving plastic products a complete structure and precise dimensions. The structure of the injection mold and the quality of mold processing directly affects the quality and production efficiency of plastic parts. The most common and most common causes of injection mold failures and troubleshooting methods in the production of injection molds and plastic products are described in detail as follows:
What is the standard injection mold development process?JasmineHL
Before drawing the final assembly drawing of the mold, the process drawing should be drawn up, and it should meet the requirements of the workpiece drawing and process data. The size guaranteed by the next process shall be marked with the words "process size" on the drawing. If, after molding, no other machining is performed except for repairing burrs, the process drawing is exactly the same as the workpiece drawing.
Continuous drawing die -dgmf mold clamps co., ltdJasmineHL
There are many types of products in the mold industry, of which the stretch mold is one of the higher technical content. The reason why the drawing mold is difficult is that 1, the calculation of the design, and the test work 2 after the mold design is completed.
A mold is an industrial product that shapes a material by a certain structure in a specific structure, and is also a production tool capable of mass-producing industrial product parts having a certain shape and size requirement. Large to airplanes, cars, small cups, nails, almost all industrial products must rely on molding. High precision, high consistency, and high productivity of parts produced by mold are unmatched by any other processing method. Molds largely determine quality, efficiency and new product development capabilities of product. Therefore, mold has honorary title of “Mother of Industry”.
Reasonable product design and mold design are key technologies that affect the success of injection molding. This article introduces some basic principles of injection molded product design and mold design.
1. The basic conditions of plastic product design
1.1. Record the product usage conditions as detailed as possible.
These conditions are:
A. Use environment
Outdoor conditions (sunlight, rain, ice, snow, dust), sunlight (ultraviolet rays, radiation, etc.), contact with gas (corrosive gas, water vapor), contact with liquid (water, detergent, oil, medicine, etc.), other (plasticizers), copper);
B. Use intensity
Common temperature, maximum temperature, minimum temperature (usually, special circumstances, outdoor, warehouse, window, car, etc.), repeated cold and hot
C. Use load
Common load, maximum load (normal, special circumstances. Static, dynamic, repeated, continuous, impact, drop, etc.).
Five elements of injection molding process parametersJasmineHL
The injection molding process is one of the four major plastic molding processes. The barrels, basins, toys, and other daily products we use in our lives are all formed by the injection molding process. So what are the important factors to pay attention to in the plastic injection molding process?
The completion of the injection molding process generally requires six processes of clamping, filling, holding pressure, cooling, demolding, and opening the mold. In these six processes, we must remember these five elements, namely pressure, speed, position, temperature, and time.
Mold clamp tools definition
What is mold clamp? The mold clamp (also called mould clamp) is a kind of auxiliary clamping unit often used in injection mold processing, its main function is to keep the machined parts not shaking not moving in the processing.
What are the key points of precision injection moldingJasmineHL
Precision injection molding is affected by many related factors and environmental conditions, and the most basic are the four basic factors of plastic materials, injection molds, injection molding processes, and injection molding equipment.
In the early stage of designing plastic products, engineering plastics with corresponding performance requirements should be selected according to the application environment.
Secondly, the appropriate injection molding machine should be selected according to the selected plastic material, finished product dimensional accuracy, part weight, quality requirements, and expected mold structure.
What are mold clamps -dgmf mold clamps co., ltdJasmineHL
Mold clamps (also mould clamps) are clamping elements with a hole or an elongated hole for the mechanical fixation of various solid bodies on a work plate or holder. Mostly mold clamps are used for plastic injection molding machines and CNC machines.
Influence of injection molding process on product quality -dgmf mold clamps c...JasmineHL
During the molding process of converting plastic particles into plastic products, plastics are often subjected to high temperature and high pressure and flow molding at high shear rates. Different molding conditions and processes will have different effects on product quality. Plastic injection molding has plastics. Raw materials, injection molding machines, molds and injection molding processes are composed of four aspects.
Gating system is one of five major systems in the design of plastic molds. Its design will affect product ranking, number of mold cavities, form of mold structure, choice of injection moulding machine size, level of injection molding costs, level of mold manufacturing costs, difficulty of mold manufacturing, pressure, post-processing methods and costs during manufacturing. Slight effects will cause product to appear burrs, shrinkage, deformation, air lines, pinching, trapped air, easy to crack, difficult to cut, difficult to repair, difficult to take, difficult to take, etc .; serious effects will make product unable to produce, unfilling injection, obvious and severe clamping, product burnt, damage to appearance, bending of mold core, dragging product to scrap, unable to perform post-processing, unable to package, unable to distinguish left and right, etc.
What is parting lock?
Parting lock is also called nylon mold clamp, resin shutter, nylon mold lock, resin mold clamp, nylon resin shutter, etc. It is a mold component that adjusts the friction between the template and the nylon sleeve by locking the tapered bolts.
Sheet metal process blanking -dgmf mold clamps co., ltdJasmineHL
Punching is a basic stamping process that uses a mold to separate materials. It can be directly made into flat parts or prepared for other stamping processes such as bending, deep drawing, forming, etc., and can also be cut, repaired on the formed stamped parts. Wait. The blanking process accounts for about 50% to 60% of the entire stamping process.
The inclined top mold is also known as the inclined tip. It is the mechanism used to mold the internal barbs of the product in the mold design. It is suitable for relatively simple barbs.
Similar to How to solve the profile problem of injection molded parts -dgmf mold clamps co., ltd (20)
What determines high performance plasticsJasmineHL
The following six factors determine the high-performance plastics.
(1) The type of polymer determines high-performance plastics
The performance is also different because of the different polymer links, such as acetal resin (POM) impact strength, then the unsaturated polyester resin (UP) is more excellent. Even if the same material, structure, and polymerization degree are different, the performance varies significantly.
18 Basic Injection Molding Technologies
Below are the 18 basic injection molding technologies that injection molding technicians must know.
01. Nozzle in the injection molding technologies
The melt usually flows from the nozzle into the nozzle, but in some injection molds, the nozzle is part of the mold because it extends to the bottom of the mold. There are also two main types of nozzles: open nozzles and closed nozzles. In injection molding, open nozzles should be used more because they are cheaper and less likely to stay.
If the injection molding machine is equipped with a pressure-removing device, this nozzle can be used even for low-viscosity melts. Sometimes a closed nozzle must be used. This nozzle acts as a stop valve to block the plastic in the injection cylinder.
Make sure that the nozzle is correctly connected to the nozzle bushing, and the top hole is slightly smaller than the nozzle sprue bushing, which makes the nozzle easier to withdraw from the injection mold. The hole of the nozzle sleeve is 1mm larger than the nozzle, that is, the radius of the nozzle is 0.5mm smaller than the radius of the nozzle sleeve.
What is mold temperature in injection molding?JasmineHL
The mold temperature in injection molding is probably the most important temperature in terms of quality and this affects quality in many ways. The mold temperature is not the same thing as the cooling water temperature, it is the temperature of the actual mold cavity after it has stabilized.
Mold components refer to the general name of metal accessories used in stamping dies, plastic molds, or FA automation equipment exclusively in the mold industry.
Here we are going to introduce 60 kinds of the mold components.
1. Causes of dents
1.1 The thickness of each part of the product is different
1.2 Insufficient pressure inside the mold
1.3 Insufficient mold cooling
1.4 Deformation due to the insufficient cooling time
Precautions for injection mold maintenanceJasmineHL
Injection mold, as the most important production tool of injection molding factory, determines the shape, specification, size and appearance finish of the product. The material of the mold is steel, which is generally composed of a front mold and a back mold.
What is the 4 process of plastic injection molding?JasmineHL
The plastic injection molding process mainly includes four stages: filling, holding pressure, cooling, and demolding. These four stages directly determine the molding quality of the product, and these four stages are a complete continuous process.
Plastic products are made of a mixture of synthetic resin and various additives as raw materials, using injection, extrusion, pressing, pouring, and other methods. While plastic products are being molded, they also obtain the final performance, so plastic molding is a key production process.
The following are 10 common plastic Injection molding methods.
Secrets of injection molding process adjustmentJasmineHL
The close relationship between injection speed and product quality makes it a key parameter of injection molding. By determining the start, middle, and end of the filling speed segment, And to achieve a smooth transition from one set point to another set point, a stable melt surface speed can be ensured to produce the desired molecule and the smallest internal stress.
The cold forging, cold extrusion, and cold heading are general terms for plastic processing. Cold forging, also called cold volume forming, is a manufacturing process and a processing method. Cold forging is the forming process below the recrystallization temperature of the material, and the forging performed below the recovery temperature.
What is the difference between blow molding and injection moldingJasmineHL
What Is The Difference Between Blow Molding And Injection Molding?
First, the process is different
Blow molding: Blow molding uses gas pressure to inflate the hot parison closed in the mold into a hollow product, or the tube parison is inflated into a tube film without a mold.
Injection molding: injection molding is to melt plastic materials, and then inject them into the film cavity to form.
Blow molding is a manufacturing process for forming and joining together hollow plastic parts. It is also used for forming glass bottles or other hollow shapes. In general, there are three main types of blow molding: extrusion blow molding, injection blow molding, and injection stretch blow molding.
Appropriate opening of the injection mold air vent can greatly reduce the injection molding pressure, injection molding time, holding time, and injection mold clamping pressure, making the plastic parts from difficult to easy, thereby improving production efficiency, reducing production costs, and reducing the energy consumption of the machine.
How complex molds are demolded dynamic picturesJasmineHL
Today we will share with you a wave of dynamic pictures of how complex molds are demolded, including rotary core pulling, complex slider mechanisms, complex inclined top mechanisms, and so on. These dynamic pictures can be said to be the essence of a set of molds. We recommend everyone to collect them. They can really help everyone to increase their knowledge.
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Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
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Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
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Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
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A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
How to solve the profile problem of injection molded parts -dgmf mold clamps co., ltd
1. www.moldclamps.net info@moldclamps.net 0086-17322110281
DGMF Mold Clamps Co., Ltd
mingfeng425@gmail.com
Please browse our website or contact us for more articles, thank you.
How to solve the profile problem of injection molded parts?
Written By Jasmine HL
Generally speaking, automotive series components, and some parts with sealing requirements,
usually put forward the concept of contour size requirements.
There is no doubt that contour tolerances are usually used to constrain irregular surfaces,
because if there is a requirement for a plane, then the flatness is equal to the contour of the
plane, which is a circumferential surface, then the roundness is the contour of the circumferential
surface degree.
Only those irregular surfaces constructed by a combination of straight lines, curves, and R angles
need to be constrained by the profile to ensure the installation fit clearance or to meet other
performance requirements such as sealing.
As shown in the figure above, the contour requirement of the curve is 0.4mm. The actual contour
of the product is measured at points. The maximum offset contour is 0.15mm.
After understanding the concept of contour, we can easily understand the root cause of the poor
profile of injection molded parts. The logical reasoning analysis is as follows:
Step1, if the contours of the mold core and the mold core meet the design requirements, then
theoretically, how to ensure that the contours of the product before the mold release also meet
the design requirements?
This problem is easier to understand: as long as the product is full enough, the resin and the
cavity are closely fitted, then theoretically the contour can meet the requirements. However, it is
not ruled out that due to the injection pressure being too high, the mold core or the mold core is
subjected to excessive stress during the filling process, which may cause local deformation,
displacement, and yield.
If it is possible to identify the displacement and deformation of the mold core during filling, then
the optimization of the support columns and precise positioning can be considered.
Step2, if the profile of the product can meet the requirements before the mold is ejected, but the
measurement result is too poor after the mold is cooled, then the cause of the excessive profile is
2. www.moldclamps.net info@moldclamps.net 0086-17322110281
DGMF Mold Clamps Co., Ltd
mingfeng425@gmail.com
Please browse our website or contact us for more articles, thank you.
also very clear: or the force deforms during the demolding process Or cooling shrinkage
deformation.
Is it due to force deformation during mold opening or ejection, or shrinkage deformation after
cooling?
This is not difficult to judge, because whether it is caused by deformation during the opening of
the mold (the product is torn from the front mold) or deformation during ejection (from the
separation of the rear mold), it can be identified with the naked eye.
Generally speaking, most of them are caused by the shrinkage and deformation of the product
after cooling.
Step3, how to deal with the most common shrinkage deformation caused by cooling after the
cooling? The process conditions and feasible measures in the mold are as follows:
① Under the premise of process permission, reduce the mold temperature and extend the
cooling time appropriately to reduce the amount of shrinkage and deformation after the mold is
released;
② Make the product as full as possible, so that the amount of post-shrinkage deformation will
be smaller;
③ Use jig to adjust the shape;
④ Find the maximum deformation point of out-of-contour degree and make necessary reverse
compensation on the mold core.
In fact, not only the profile, but also many dimensions of injection molded parts, we can apply
this idea to analyze and deal with. The basic analysis methods and processing ideas are
summarized again as follows:
First, understand the dimensional tolerances defined by the product drawing.
Second, collect the measurement data and do the necessary data analysis to determine whether
it is normal fluctuation or abnormal.
Third, based on data analysis and process observation, determine whether the size problem of
the product is caused during molding, is caused by the movement process, or is caused by
post-contraction.
Fourth, according to the preliminary analysis and judgment, take corresponding measures, and
verify the effectiveness in time after the measures.
Fifth, if the measures are effective, then the necessary standardization documents should be
formulated in a timely manner, and the knowledge of the organization promoted should be
shared and controlled within the organization.