“Virtual machining” is a modelling process that realistically simulates the setting up and running of an actual machining operation. First, the user specifies the stock from which the part will be cut, either by entering dimensions into the software or importing a CAD model. Then, after selecting the cutting tools, the NC program (either G-code data or native CAM output) automatically simulates the motion of the tool removing material from the stock. The programmer can watch the material removal process and see details of how each cut changes the shape of the part. This eliminates having to try to imagine how cuts from the current operation will affect subsequent operations.
IMC-ISLAMIC MEDIA CENTER : calls upon the Muslims in the Islamic media around the world to trust and confidence with the promise of Allah to save the message of the Prophet Muhammad peace be upon him, and achieve victory in the manner recommended by Allah in his book: Invite (all) to the Way of thy Lord with wisdom and beautiful preaching; and argue with them in ways that are best and most gracious: for thy Lord knoweth best, who have strayed from His Path, and who receive guidance. (An-Nahl 16: 125)
Virtual Mold Design
Firstly we transform our surface plastic part model into Extended Z Map. Then we do draft analysis to detect undercut.
Secondly we explode the part into core and cavity face groups.
Our Extended Z Map is used to classify the part face into core, cavity, both direction, and undercut face groups. There is no parting line search or selection process until the next step. We don’t use the parting line to separate the core and cavity faces. Our method does not need to traverse the B-rep edge face relation map.
Thirdly we perform the parting edge and hole edge loop search on the exploded core and cavity faces groups
This presentation explains how Amatsu Ireland is an invaluable technique treating a wide range of problems including:
Neck Arthritis Discomfort during Pregnancy
Shoulder Colic Sprains and Strains
Back and Pelvis Joint Problems Postural Problems
Muscle Spasm Headaches Circulatory Problems
Sciatica Sports Injuries
El presente trabajo trata de ofrecer recomendaciones para aquellos docentes que quieran incorporar Kahoot a sus metodologías docentes, identificando sus puntos fuertes y débiles. Igualmente, se señalan aquellas áreas de mayor trabajo en la planificación docente de la aplicación, ofreciendo potenciales soluciones".
Presentación ofrecida por Leticia Rodríguez Fernández en "Jornadas de Innovación y TIC Educativas", JITICE 2016 de la Universidad Rey Juan Carlos
Simulation of machining process for CNC training is significant given its lower cost and risk-free nature. The drastic decrease of the cost of computer, couple with the worldwide price increase in material and machine tools meanings that virtual CNC training using computerized modelling and simulation is a cost-effective and sustainable approach to technical and professional education in manufacturing applications. The virtual CNC training system is developed for simulation of multiple machining processes. It is particularly important in the training of knowledge-intensive high speed and ultra precision machining. The in-process model proposed for the virtual CNC training system is presented in detail, followed by case studies of the industry training applications. Compared with conventional on-site manual training or e-learning, the virtual CNC training system greatly increases learning efficiency and effectiveness of trainees, and improves cost saving in terms of machine and material uses.
QuickSeeNC first case study 1999
The High Speed Machining (HSM) is the most important technological development in precision engineering. The constant load is a very important factor in HSM. The cutter will break under uneven cutting force. The HSM requires huge tool path to realise the constant load. The milling tool path can easily exceed a half million blocks of machine code. As the feed rate is already very high, it is almost impossible to run test cutting by increasing the feed rate. Visual tool path check is difficult as the tool path overlapping with each other. It takes a long time to run traditional NC simulation software.
The world’s first intelligent CAM integrated with 3D precise dynamic NC verification that can be rotated during simulation process and calculate machining load to optimize CNC for faster cutting.
The traditional Z-Map was re-invented to a common data model for representation of geometry, attributes, physical states and other characteristics of novel manufacturing processes, which may include a multi-step operation of milling, turning, moulding and EDM (Electro-Discharge Machining), etc. The method is used to integrate these discrete point unit processes into a multi-step model for pervasive processes design and verification. A second patent has been filed to apply this method in mould design and verification.
“Virtual machining” is a modelling process that realistically simulates the setting up and running of an actual machining operation. First, the user specifies the stock from which the part will be cut, either by entering dimensions into the software or importing a CAD model. Then, after selecting the cutting tools, the NC program (either G-code data or native CAM output) automatically simulates the motion of the tool removing material from the stock. The programmer can watch the material removal process and see details of how each cut changes the shape of the part. This eliminates having to try to imagine how cuts from the current operation will affect subsequent operations.
IMC-ISLAMIC MEDIA CENTER : calls upon the Muslims in the Islamic media around the world to trust and confidence with the promise of Allah to save the message of the Prophet Muhammad peace be upon him, and achieve victory in the manner recommended by Allah in his book: Invite (all) to the Way of thy Lord with wisdom and beautiful preaching; and argue with them in ways that are best and most gracious: for thy Lord knoweth best, who have strayed from His Path, and who receive guidance. (An-Nahl 16: 125)
Virtual Mold Design
Firstly we transform our surface plastic part model into Extended Z Map. Then we do draft analysis to detect undercut.
Secondly we explode the part into core and cavity face groups.
Our Extended Z Map is used to classify the part face into core, cavity, both direction, and undercut face groups. There is no parting line search or selection process until the next step. We don’t use the parting line to separate the core and cavity faces. Our method does not need to traverse the B-rep edge face relation map.
Thirdly we perform the parting edge and hole edge loop search on the exploded core and cavity faces groups
This presentation explains how Amatsu Ireland is an invaluable technique treating a wide range of problems including:
Neck Arthritis Discomfort during Pregnancy
Shoulder Colic Sprains and Strains
Back and Pelvis Joint Problems Postural Problems
Muscle Spasm Headaches Circulatory Problems
Sciatica Sports Injuries
El presente trabajo trata de ofrecer recomendaciones para aquellos docentes que quieran incorporar Kahoot a sus metodologías docentes, identificando sus puntos fuertes y débiles. Igualmente, se señalan aquellas áreas de mayor trabajo en la planificación docente de la aplicación, ofreciendo potenciales soluciones".
Presentación ofrecida por Leticia Rodríguez Fernández en "Jornadas de Innovación y TIC Educativas", JITICE 2016 de la Universidad Rey Juan Carlos
Simulation of machining process for CNC training is significant given its lower cost and risk-free nature. The drastic decrease of the cost of computer, couple with the worldwide price increase in material and machine tools meanings that virtual CNC training using computerized modelling and simulation is a cost-effective and sustainable approach to technical and professional education in manufacturing applications. The virtual CNC training system is developed for simulation of multiple machining processes. It is particularly important in the training of knowledge-intensive high speed and ultra precision machining. The in-process model proposed for the virtual CNC training system is presented in detail, followed by case studies of the industry training applications. Compared with conventional on-site manual training or e-learning, the virtual CNC training system greatly increases learning efficiency and effectiveness of trainees, and improves cost saving in terms of machine and material uses.
QuickSeeNC first case study 1999
The High Speed Machining (HSM) is the most important technological development in precision engineering. The constant load is a very important factor in HSM. The cutter will break under uneven cutting force. The HSM requires huge tool path to realise the constant load. The milling tool path can easily exceed a half million blocks of machine code. As the feed rate is already very high, it is almost impossible to run test cutting by increasing the feed rate. Visual tool path check is difficult as the tool path overlapping with each other. It takes a long time to run traditional NC simulation software.
The world’s first intelligent CAM integrated with 3D precise dynamic NC verification that can be rotated during simulation process and calculate machining load to optimize CNC for faster cutting.
The traditional Z-Map was re-invented to a common data model for representation of geometry, attributes, physical states and other characteristics of novel manufacturing processes, which may include a multi-step operation of milling, turning, moulding and EDM (Electro-Discharge Machining), etc. The method is used to integrate these discrete point unit processes into a multi-step model for pervasive processes design and verification. A second patent has been filed to apply this method in mould design and verification.
SIMTech has patented common data model for representation of geometry, attributes, physical states and other characteristics of novel manufacturing processes, which may include a multi-step operation of milling, turning, molding and EDM (Electro-Discharge Machining), etc. The method is used to integrate these discrete point unit processes into a multi-step model for pervasive processes design and verification. A second patent has been filed to apply this method in mold design and verification.
SIMTech has developed the QuickSeeNC to model, simulate, verify and optimise numerical control (NC) machining, which provide ‘What You See is What You Cut’ functions. QuickSeeNC has been adopted by several local die and mould makers for its speed and simplicity.
Unified Geometry Modelling for Pervasive Design and FabricationLiu PeiLing
Conventional Computer Aided Design (CAD), Computer Aided Engineering (CAE), and Computer Aided Manufacturing (CAM) employed discrete geometry models that could not be easily exchanged and effectively employed for biomech design and fabrication.
SIMTech has patented a common data model for representation of geometry, attributes, physical states and other characteristics of novel manufacturing processes. The method could be extended to integrate these discrete point unit processes into a unified geometrical model for pervasive design and verification.
SIMTech has developed the QuickSeeNC to model, simulate, verify and optimise numerical control (NC) machining, which provide ‘What You See is What You Cut’ functions. QuickSeeNC has been adopted by several local die and mould makers for its speed and simplicity. SIMTech is working with Singapore Precision Engineering and Tooling Association (SPETA) to develop training simulator for the Xbox & Play station (X&P) generation of NC machinist and programmer.
Smart machining adds intelligence to the machining operation. NC simulation could take into account the exact depth, width and angle of each cut and optimize the machining parameters based on the machining model and measured data of the part geometry.
Profiting from dynamic numerical control verification systemLiu PeiLing
Comparing with the sharp decline of the computing cost, worldwide material and machine tool prices are upsurge significantly. Saving material and machine through pervasive computing is not only technically possible, but also makes business sense in the current high raw material and energy cost situation. SIMTech developed QuickSeeNC to model, simulate, verify, and optimizes NC machining. Many local die and mold maker adopted QuickSeeNC for its speed and simplicity. The patented technology sharpens the cutting edge of Singapore die and mold industry.
Towards smart and sustainable machiningLiu PeiLing
Computer Numeric Control (CNC) revolutionized the machining technology and has been the cutting edge of digital manufacturing since 1950s. CNC machining model, simulation, verification, and optimization have been a vivid research topic of Smart Machining that automated the CNC programming (CAM) and cutting process, hence greatly increased machining productivity since 1990s. This paper traces back the history of CNC simulation, analysis the different CNC machining models, tested with application examples, and listed different CNC verification industry applications for the last 20 years. The new challenge comes from sustainable manufacturing. Towards smart and competitive sustainable machining, CNC model and simulation will be used to optimize the machining process, where the raw material could be saved through First Part Correct technology, the energy could be saved through cutting speed optimization, and used parts could be saved by remanufacturing.
Enhance VR with in process model for advance personalized learning of cnc pro...Liu PeiLing
Enhance Virtual Reality (VR) for advance personalized learning has been listed as the grand engineering challenge [1]. However, current VR model is not deformable to describe the shape change of manufacturing processes, such as subtractive machining or additive layer manufacturing (LM). Further more, current VR model is not precise enough to simulate the measurement of workpiece, which may go to submicron level. This paper reviewed the current industrial needs of virtual computer numerical control (CNC) training, listed the critical technology issues, traced the 20 years evolution of in-process models of CNC machining, and proposed a new solution. Based on the proposed in-process model, a virtual CNC training system has been developed and used in training courses. Comparisons with conventional on-site manual training and VR based e-learning concluded this new approach could greatly improve safety, increase learning efficiency, and save machine and material.
Quick NC simulation & verification for high speed machiningLiu PeiLing
Numerical Control (NC) machining is the cutting edge of modern manufacturing technology. NC errors could break cutter edges, destroy work pieces and even damage the machine tool. In recent years, more and higher speed cutting is applied in the industry due to the advancement of machine tool technology and the demand of shorter production time. However, checking the NC codes for high speed machining is difficult due to the lack of information on material removal rate and the large size of NC blocks. In this paper, a novel high speed NC simulation method in an extended Z-map approach is presented, which offers higher simulation accuracy of the resulted geometry and with reasonable cutting load calculation. In conclusion the authors propose the pervasive manufacturing modeling and simulation for multi machining and layered manufacturing processes.
Profiting with competitive sustainable machining technologyLiu PeiLing
Sustainability has found its way to machining, increasing productivity and reducing cost at the same time. By Liu Peiling, principal research engineer, SIMTech.
Manufacturing Process Simulation Based Geometrical Design for Complicated PartsLiu PeiLing
More than ever, it is critical that products are designed and manufactured right the first time. Design for Manufacturing (DFM) methodology has been recognized as one of the most effective ways to short product lifecycle time and reduce manufacturing cost. The main function of DFM in the detailed design stage is analyzing the manufacturability of the part. Various existing manufacturability evaluation methods have their limitations. In this paper, a new approach to DFM for the complicated parts is proposed. Instead of checking the manufacturability following the design, the in-process model resulting from the manufacturing process simulation is used to generate process dependent geometry surfaces at the design stage. The definition of the manufacturing process dependent geometry is given, and the methodology for creation of in-process model is presented in details.
TOWARDS A UNIFIED IN-PROCESS GEOMETRIC MODEL FOR MULTIPLE MACHINING AND Layer...Liu PeiLing
There are many fabrication processes in modern manufacturing, but current modeling and simulation tools only simulate a few unit processes based on different geometry models. To overcome the data exchange problem between different models, this paper studies various in-process geometry models together with their working systems / prototypes for traditional manufacturing processes. Novel hybrid multiple-machining and layered manufacturing processes are presented to identify critical issues. Working towards a vision of pervasive modeling and simulation, a unified Voxel-based in-process geometry model for multiple-machining and layered manufacturing simulations is proposed and discussed.
Nc verification and re processing for collaborative machiningLiu PeiLing
Collaborative machining is becoming a common practice worldwide. In mold manufacturing industry, as the specialized workshops often do machining much faster and cheaper than big mold firms, the mold makers are sub-contracting the machining jobs to other workshops especially the specialized workshops for higher efficiency and profit. This practice causes the separation of NC data generation, verification, and re-processing which requests new ways to manage NC data. This paper investigates the collaborative machining process and identifies quick NC data verification and re-processing as critical issues. The functionalities and limitations of the commercial systems are studied and the related NC model, simulation, verification, and optimization technology are scrutinzed. A dynamic in-process stock model based on a new geometry representation is proposed, then a system for quick NC verification and re-processing is developed using OpenGL. The system has been implemented in many mold manufacturing companies and the results show that the pervasive machining modeling, simulation, verification, and re-processing can effectively optimize machining processes in collaborative machining environments.
Towards smart and competitive sustainable machiningLiu PeiLing
Computer Numeric Control (CNC) revolutionized the machining technology and has been the cutting edge of digital manufacturing since 1950s. CNC machining model, simulation,
verification, and optimization have been a vivid research topic of Smart Machining that automated the CNC programming (CAM) and cutting process, hence greatly increased machining productivity since 1990s. This paper traces back the history of CNC simulation, analysis the different CNC machining models, tested with application examples, and listed different CNC verification industry applications for the last 20 years. The new challenge comes from sustainable manufacturing. Towards mart and competitive sustainable machining, CNC model and simulation will be used to optimize the machining process, where the raw material could be saved through First Part correct technology, the energy could be saved through cutting speed optimization, and used parts could be saved by remanufacturing.