Automatic Tool Path Generation For Finish Machining
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Automatic Tool Path Generation For Finish Machining
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Author :
language : en
Publisher:
Release Date : 1997
Automatic Tool Path Generation For Finish Machining written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.
A system for automatic tool path generation was developed at Sandia National Laboratories for finish machining operations. The system consists of a commercially available 5-axis milling machine controlled by Sandia developed software. This system was used to remove overspray on cast turbine blades. A laser-based, structured-light sensor, mounted on a tool holder, is used to collect 3D data points around the surface of the turbine blade. Using the digitized model of the blade, a tool path is generated which will drive a 0.375 inch diameter CBN grinding pin around the tip of the blade. A fuzzified digital filter was developed to properly eliminate false sensor readings caused by burrs, holes and overspray. The digital filter was found to successfully generate the correct tool path for a blade with intentionally scanned holes and defects. The fuzzified filter improved the computation efficiency by a factor of 25. For application to general parts, an adaptive scanning algorithm was developed and presented with simulation results. A right pyramid and an ellipsoid were scanned successfully with the adaptive algorithm.
Automatic Tool Path Generation For Multi Axis Machining
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Author : Laxmiprasad Putta
language : en
Publisher:
Release Date : 1998
Automatic Tool Path Generation For Multi Axis Machining written by Laxmiprasad Putta and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
Automatic Tool Path Generation For Machining Sculptured Surfaces Using Optimizations Based On Thin Layer Cutting And High Speed Machining Concepts
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Author : Dennis Tang
language : en
Publisher:
Release Date : 1994
Automatic Tool Path Generation For Machining Sculptured Surfaces Using Optimizations Based On Thin Layer Cutting And High Speed Machining Concepts written by Dennis Tang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
Cnc Tool Path Generation For Finish Milling Convex Pockets
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Author : Deepak Manuel
language : en
Publisher:
Release Date : 1995
Cnc Tool Path Generation For Finish Milling Convex Pockets written by Deepak Manuel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.
Production efficiency has increased considerably due to the use of computer-numerical controlled (CNC) machines. To machine a component on a CNC machine, part programs which define the cutting tool path are needed. This tool path is usually planned from computer-aided design (CAD) drawings, and converted to a computer-aided manufacturing (CAM) machine input format. However, several production bottlenecks are encountered in this transformation process, leading to escalated production costs and time. This problem can be attributed to two major causes. The first issue is the mode by which the CAD data is converted into CAM data and the second one is the efficiency or optimality of the physical process itself in producing an error-free machined surface. Considering these drawbacks, an automatic tool path generating system to machine 2 1/2 dimensional arbitrarily shaped convex pockets was developed, in which tool path planning is done without the aid of CAD modellers or data exchange formats. This proposed methodology generates a spiral-like tool path by dynamically computing optimal offsets of the pocket boundary contour based on the type and size of the milling cutter, the geometry of the pocket contour and surface finish tolerance requirements. This part programming system is PC based and simultaneously generates a G-code file, a verification file for simulating the generated tool path on a CAD package and a result file for research purposes.
Automatic Tool Path Generation For Numerically Controlled Machining Of Sculptured Surfaces
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Author : Xiaoxia Li
language : en
Publisher:
Release Date : 19??
Automatic Tool Path Generation For Numerically Controlled Machining Of Sculptured Surfaces written by Xiaoxia Li and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 19?? with Machine-tools categories.
General Application Of Rapid 3 D Digitizing And Tool Path Generation For Complex Shapes
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Author :
language : en
Publisher:
Release Date : 1997
General Application Of Rapid 3 D Digitizing And Tool Path Generation For Complex Shapes written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.
A system for automatic tool path generation was developed at Sandia National Laboratories for finish machining operations. The system consists of a commercially available 5-axis milling machine controlled by Sandia developed software. This system was used to remove overspray on cast turbine blades. A laser-based, structured-light sensor, mounted on a tool holder, is used to collect 3D data points around the surface of the turbine blade. Using the digitized model of the blade, a tool path is generated which will drive a 0.375 inch grinding pin around the tip of the blade. A fuzzified digital filter was developed to properly eliminate false sensor readings caused by burrs, holes and overspray. The digital filter was found to successfully generate the correct tool path for a blade with intentionally scanned holes and defects. The fuzzified filter improved the computation efficiency by a factor of 25. For application to general parts, an adaptive scanning algorithm was developed and presented with simulation and experimental results. A right pyramid and an ellipsoid were scanned successfully with the adaptive algorithm in simulation studies. In actual experiments, a nose cone and a turbine blade were successfully scanned. A complex shaped turbine blade was successfully scanned and finished machined using these algorithms.
Automatic Tool Path Generation For The Rough Machining Of Dies And Molds Microform
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Author : David Marsh
language : en
Publisher: National Library of Canada = Bibliothèque nationale du Canada
Release Date : 1994
Automatic Tool Path Generation For The Rough Machining Of Dies And Molds Microform written by David Marsh and has been published by National Library of Canada = Bibliothèque nationale du Canada this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
5 Axis Tool Path Generation With Collision Detection For Finish Machining Of Freeform Surfaces
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Author : Jomy Francis
language : en
Publisher:
Release Date : 2012
5 Axis Tool Path Generation With Collision Detection For Finish Machining Of Freeform Surfaces written by Jomy Francis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Machine-tools categories.
"Research in the field of Tool path generation for freeform surfaces has been done intensively in the past. However, the main challenge that still exists is the computational efficiency related to the tool path generation. Tool path generation for freeform surface involves instantaneous calculation of new tool orientations which does not collide with the neighboring surfaces. Since the collision check of tool and neighboring surface is done repetitively at every instant of the tool, the calculations at every instant are to be computationally as easy as possible. This thesis is composed of one paper. Paper I presents a novel extension of the Bounding Box technique used for collision detection. This novel method solves the above mentioned challenge of computational efficiency in the field of tool path generation. The new approach that has been implemented in Paper I involves using the simplest computational operators that are comparison operators along with a novel Diagonal Bounding Box technique. This ensures the tool path generation to be less cumbersome computationally. Furthermore, the boundaries of the proposed machining algorithm in terms of collision correction and the proper application of the machining algorithm have been explored"--Abstract, leaf iv
Automatic Tool Selection And Tool Path Generation For Five Axis Surface Machining
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Author : Jianxin Pi
language : en
Publisher:
Release Date : 1996
Automatic Tool Selection And Tool Path Generation For Five Axis Surface Machining written by Jianxin Pi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Machine-tools categories.
Dichotomization Approach To Automatic Tool Path Generation For 3d Complex Parts Machining
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Author : George D. Jegadesh
language : en
Publisher:
Release Date : 1995
Dichotomization Approach To Automatic Tool Path Generation For 3d Complex Parts Machining written by George D. Jegadesh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.