Abstract
An expert process planning and fixturing system described in [14] is improved here by applying Boolean operations. This system uses forward planning strategy, i.e. begins with the blank part and applies some operations for each face or feature until reaching the finished part. This paper is focused on finished and intermediate part modeling within the process planning system by geometric transformations and Boolean operations.
Highlights
The Product Data Exchange Specification (PDES) has been designed by the IGESIPDES Organization. This new standard has been developed under the name of Standard for the Exchange of Product Model Data (STEP) which is a neutral graphics standard capable of representing product data completely and comprises both geometric and technological information including geometry, topology, form, features, tolerances, surface roughness and material necessary to define a component completely, [2,3]
The information about a blank part and material is an input to the process planning system
Finished and intermediate part modeling in a process planning system discussed in [14] is improved here
Summary
The Product Data Exchange Specification (PDES) has been designed by the IGESIPDES Organization This new standard has been developed under the name of Standard for the Exchange of Product Model Data (STEP) which is a neutral graphics standard capable of representing product data completely and comprises both geometric and technological information including geometry, topology, form, features, tolerances, surface roughness and material necessary to define a component completely, [2,3]. Through the use of STEP, data transfer between dissimilar CAD (Computer Aided Design) systems and between CAD and CAPP/CAM When the system developed receives 3D B-rep CAD data for prismatic parts in STEP format, it converts such data format into Prolog clauses form, designs a blank for the part and selects a stock size. The image of the part is got by using rotations and projections
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