Pervasive Geometry Simulation
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SIMTech has patented a common data model to represent geometry, attributes, and physical states of various manufacturing processes like milling, turning, molding, and EDM. This method integrates discrete unit processes into a multi-step model for designing and verifying pervasive manufacturing processes. A second patent has been filed applying this method to mold design and verification.
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AN OBJECT REPRESENTATION METHOD
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.
Machining modelling simulation beyond nc verification
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.
Modern CAD CAM Systems
Modern industries demand accurate parts produced efficiently on the first trial despite increasing part complexity and reduced life cycles. Designing, testing, and optimizing manufacturing processes virtually provides a key tool to achieve these goals. This allows both accuracy and productivity in part production to be increased by applying digital environments to manufacturing processes.
3D scanning and Reverse Engineering
Through use of the GOM made ATOS Compact scanner, Skorpion offers a service of high precision dimensional reliefs and reverse engineering.
Reverse engineering
Reverse engineering is a systematic process of analyzing existing systems or products to understand their design or redesign them. It involves creating CAD models from physical objects using techniques like 3D laser scanning or CT scanning. Reverse engineering has applications in new product design, redesign of existing products, custom product design, and modifying physical models. It is an efficient approach to significantly reduce product development time by optimizing available resources and meeting customer requirements. The reverse engineering process includes data capturing, processing measured data, CAD modeling, and creating prototypes. Common digitizing techniques are contact methods using CMM and non-contact methods like laser scanning and CT scanning.
Reverse engineering for mechanical
This document discusses reverse engineering and its importance. Reverse engineering is the process of analyzing a system to understand its components and recreate it without prior documentation. This allows reducing product development times for manufacturers. The methodology involves digitizing the object, creating a CAD model through discretization and data manipulation, and generating a functional part. Reverse engineering provides advantages like cost savings, quality improvements, and competitive advantages. Its applications include manufacturing, medical, and software fields.
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Unified Geometry Modelling for Pervasive Design and Fabrication
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.
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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.
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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.
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Modern industries demand accurate parts produced efficiently on the first trial despite increasing part complexity and reduced life cycles. Designing, testing, and optimizing manufacturing processes virtually provides a key tool to achieve these goals. This allows both accuracy and productivity in part production to be increased by applying digital environments to manufacturing processes.
3D scanning and Reverse Engineering
Through use of the GOM made ATOS Compact scanner, Skorpion offers a service of high precision dimensional reliefs and reverse engineering.
Reverse engineering
Reverse engineering is a systematic process of analyzing existing systems or products to understand their design or redesign them. It involves creating CAD models from physical objects using techniques like 3D laser scanning or CT scanning. Reverse engineering has applications in new product design, redesign of existing products, custom product design, and modifying physical models. It is an efficient approach to significantly reduce product development time by optimizing available resources and meeting customer requirements. The reverse engineering process includes data capturing, processing measured data, CAD modeling, and creating prototypes. Common digitizing techniques are contact methods using CMM and non-contact methods like laser scanning and CT scanning.
Reverse engineering for mechanical
This document discusses reverse engineering and its importance. Reverse engineering is the process of analyzing a system to understand its components and recreate it without prior documentation. This allows reducing product development times for manufacturers. The methodology involves digitizing the object, creating a CAD model through discretization and data manipulation, and generating a functional part. Reverse engineering provides advantages like cost savings, quality improvements, and competitive advantages. Its applications include manufacturing, medical, and software fields.
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This document discusses reverse engineering, which is the process of redesigning an existing product to improve its functions, quality, and useful life. Reverse engineering involves measuring an existing physical object without drawings or documentation to develop a CAD model. This process reduces manufacturing costs and allows for redesigning undesirable features. Key steps include digitizing the physical object through contact or non-contact scanning, manipulating the collected data points to develop surface models, and generating CAD files that can be used for applications like manufacturing or medical imaging. The document outlines advantages like cost savings, quality improvements, and competitive advantages through reverse engineering.
Unified Geometry Modelling for Pervasive Design and Fabrication
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.
Geometric modelling
Geometric modelling was introduced in the 1960s using electronic drafting boards to draw 2D designs. In the 1970s, wireframe and surface models were developed, and by the mid-1980s, solid models could be drawn. Current practices include high data associativity, digital mock-up software allowing different models to be combined, and file formats like STEP and IGES enabling engineering data exchange. Geometric modelling has benefited design through automation, increased productivity, 3D visualization, and electronic data transfer for manufacturing.
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This document discusses analyzing burr size in drilling processes for different alloys using image processing techniques. It aims to determine different burr dimensions and types using image processing. Researchers captured images of burrs produced from drilling various alloys and thicknesses. The images were processed in MATLAB to measure burr height, thickness, and type. The study found that image processing is an effective non-contact technique for burr analysis that can reduce costs and time compared to traditional measurement methods. The technique allows burr sizes to be predicted to aid manufacturing process planning and deburring operations.
Reverse engineering
Reverse engineering is a systematic process of analyzing existing systems or products to understand their design, functionality, and potential for improvement. The process involves digitizing physical parts to create 3D CAD models, which can then be manipulated and analyzed. This allows existing products to be redesigned to add new functionality, improve quality, or extend useful life. Reverse engineering is commonly used when original documentation is lacking, products need repair, or new designs can be created more efficiently than starting from scratch. It has applications in manufacturing, software, and medical fields.
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5 axis 3 d hybrid manufacturing automation 五轴三维增减材复合制造自动化
増材制造技术仍然存在表面质量相对较差、尺寸精度较低、零件材料致密性较低等缺点，加工出来的零件难以直接用于实际应用中，在通过增材制造方法完成零件成型后往往需要利用车削、铣削、磨削等减材制造方法进行减材制造，以达到零件所需的表面质量与尺寸精度。然而，对于结构复杂的零件表面，常因工件结构的干涉而无法实现复杂表面的减材制造，并且，增材制造与减材制造分别进行，需要重新装夹、定位，这样会影响加工精度与加工效率。因此，单一的増材制造或者单一的减材制造均无法胜任结构复杂、表面质量要求高、尺寸精度要求高的零件的快速高效生产。为了有效解决当前増材制造设备制造出的零件难以直接用于实际生产的问题，提供了一种根据CAD模型数据增减材复合制造统一建模，仿真，验证和优化，进行増材制造和减材制造的交替，进行复杂曲面零件的一次性成型制造，无需二次加工，可以有效提高复杂零件的加工效率与成型精度。
PartingAdviser introduction
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
Kojin mould case study
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.
Comprehensive machining simulation beyond g code verification final
Modern NC simulation software can reduce design and manufacturing time by automatically simulating NC programs to verify the machined workpiece matches the design. Simulation provides an electronic model of the in-process workpiece that can be used for documentation, inspection plans, and process planning. It also detects potential machine crashes. Latest simulation software optimizes feed rates and can simulate multiple machine setups simultaneously.
LPLCAM poster
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.
PROFITING FROM NC 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.
QuickSeeNC for X&P
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.
Profiting from dynamic numerical control verification system
SIMTech developed QuickSeeNC, a numerical control (NC) machining verification system that models, simulates, verifies and optimizes NC tool paths. QuickSeeNC has been adopted by several local die and mould makers because it is fast and simple to use. It provides "What You See is What You Cut" functions to efficiently model, simulate, verify and optimize complex NC machining processes.
A virtual cnc training system
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.
Enhance VR with in process model for advance personalized learning of cnc pro...
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 machining
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 technology
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 Parts
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...
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 machining
This document discusses collaborative machining and the need for quick NC data verification and re-processing. It begins with an abstract that introduces collaborative machining and identifies verification and re-processing as critical issues. It then reviews traditional NC simulation methods like B-rep, section, and Z-map representations. The document proposes a dynamic in-process stock model using a new geometry representation and describes a system developed for quick NC verification and re-processing using OpenGL. Test results showed the system can effectively optimize machining processes in collaborative environments.
Towards smart and competitive sustainable machining
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.
Project poster virtual cnc
The Next Generation Virtual CNC Training package is through pervasive physics-geometrical modeling and simulation of multiple processes, particularly in high speed and ultra precision machining, to provide knowledge intensive CNC training for the future skilled machinists of the local PE industry
Eye on industry Precision Engineering : Poised for Growth with $5.6m Investment
One critical area is to tackle the training of computer numeric control (CNC) machinists, which traditionally requires one machine for one machinist, resulting in heavy capital investment. SPETA, together with SIMTech, developed a simulator for training CNC machinists which significantly reduce the training hours spent on the actual machine and machine resources required. As a result, the number of students trained is also doubled.
Simtech leads precision engineering into virtual machining age
With the help of Local Enterprise and Association Development Programme (LEAD), Singapore Precision Engineering and Tooling Association (SPETA) has implemented SIMTech 3D virtual machining technology into training classroom.
More from Liu PeiLing (20)
5 axis 3 d hybrid manufacturing automation 五轴三维增减材复合制造自动化
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Comprehensive machining simulation beyond g code verification final
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Profiting from dynamic numerical control verification system
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Enhance VR with in process model for advance personalized learning of cnc pro...
Enhance VR with in process model for advance personalized learning of cnc pro...
Quick NC simulation & verification for high speed machining
Quick NC simulation & verification for high speed machining
Profiting with competitive sustainable machining technology
Profiting with competitive sustainable machining technology
Manufacturing Process Simulation Based Geometrical Design for Complicated Parts
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TOWARDS A UNIFIED IN-PROCESS GEOMETRIC MODEL FOR MULTIPLE MACHINING AND Layer...
TOWARDS A UNIFIED IN-PROCESS GEOMETRIC MODEL FOR MULTIPLE MACHINING AND Layer...
Nc verification and re processing for collaborative machining
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Towards smart and competitive sustainable machining
Towards smart and competitive sustainable machining
Eye on industry Precision Engineering : Poised for Growth with $5.6m Investment
Eye on industry Precision Engineering : Poised for Growth with $5.6m Investment
Simtech leads precision engineering into virtual machining age
Simtech leads precision engineering into virtual machining age
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#Prerequisites:
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校名:学校英文全称
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