A geometrical approach to computer-aided process planning for computer-controlled machine tools

1996 ◽  
Vol 11 (2) ◽  
pp. 83-90 ◽  
Author(s):  
A. M. Luscombe ◽  
D. J. Toncich
Keyword(s):  
Process Planning ◽  
Machine Tools ◽  
Geometrical Approach ◽  
Computer Aided Process Planning ◽  
Computer Aided ◽  
Computer Controlled

PMPS: A Prototype CAPP System for Parallel Machining

1996 ◽  
Vol 118 (3) ◽  
pp. 406-414 ◽  
Author(s):  
J. B. Levin ◽  
D. Dutta
Keyword(s):  
Process Planning ◽  
Machine Tools ◽  
Machining Accuracy ◽  
Next Generation ◽  
Computer Aided Process Planning ◽  
Cycle Times ◽  
The Past ◽  
Computer Aided ◽  
Machining Operations ◽  
New Generation

Parallel N.C. machines, also referred to as mill-turns, are a new generation of machine tools aimed at increasing machining accuracy and reducing part cycle times. In addition to their capacity to do both milling and turning, these next generation machines tools can perform multiple machining operations simultaneously, involving one or more parts at a time, and can completely finish a part (front and back) in a single setup. Parallel machining raises issues with respect to computer aided process planning which have not been dealt with in the past. In this paper, a prototype CAPP system called PMPS, for parallel machining, is described. First, we briefly highlight the new issues to be dealt with in process planning for parallel machining. Next, the architecture and details of PMPS, a generative CAPP system, is described. Finally, the implementation and results are discussed.

On the Effects of Parallelism on Computer-Aided Process Planning

1992 ◽  
Author(s):  
Jordan B. Levin ◽  
Debasish Dutta
Keyword(s):  
Process Planning ◽  
Machine Tools ◽  
Computer Integrated Manufacturing ◽  
Critical Function ◽  
Ongoing Research ◽  
Computer Aided Process Planning ◽  
New Class ◽  
Computer Aided ◽  
Machining Operations ◽  
New Machine

Abstract Computer-aided process planning is a critical function in the overall scheme of computer-integrated manufacturing (CIM). Progress in CIM is key to increased productivity. Furthermore, as new CIM systems evolve, the latest advancements from the constituent areas must be incorporated. Toward that end, our ongoing research deals with the development of methodologies to enable the inclusion of a new class of machine tools characterized by their ability to carry out machining operations in parallel. In this paper, we identify and elaborate on the effects of parallelism on computer-aided process planning, which are brought about by these new machine tools.

Machining Feature-Based CAD/CAPP for STEP-NC

2014 ◽  
Vol 598 ◽  
pp. 591-594 ◽  
Author(s):  
Li Yan Zhang
Keyword(s):  
Process Planning ◽  
Manufacturing Process ◽  
Data Transfer ◽  
Operation Planning ◽  
Computer Aided Process Planning ◽  
Machining Feature ◽  
Computer Aided ◽  
Cad Cam ◽  
Feature Based ◽  
Cam Systems

ISO 14649, known as STEP-NC, is new model of data transfer between CAD/CAM systems and CNC machines. In this paper, the modeling based on machining feature is proposed. The machining feature comes from the manufacturing process considering the restriction of machining technology and machining resource. Then the framework for computer aided process planning is presented, where the algorithms of operation planning is studied. The practical example has been provided and results indicate that machining feature based model can integrate with CAPP and STEP-NC seamlessly.

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