TEXT :
There is no text that adequately covers all sections of this course at the present time. Class notes and papers in the open literature will be used for this course.
COURSE OUTLINE :
INTRODUCTION TO THE PROCESS PLANNING FUNCTION
General considerations in process planning; role of the manufacturing engineer; problems in need of solutions and prerequisite knowledge base.
DIMENSIONING AND TOLERANCING
The role of the part print; interpretation of linear dimensions and tolerances; interpretation of geometric tolerances; elements of metrology.
ANALYSIS OF MANUFACTURING DIMENSIONS AND TOLERANCES
Error budget of machine tool/fixture/tool system; types of manufactured dimensions and their error budgets; tool setting model and solution; computing transfer of tolerances for size and geometry; simulation of machining sequence: precedence graphs, constraints, solution and applications.
ELEMENTS OF JIG AND FIXTURE ANALYSIS AND DESIGN
Position of a solid; isostatism; restriction of degrees of freedom; symbology of contact and force representation with application examples; fixturing on machine tools; locating principles for planar surfaces, cylindrical surfaces, conical surfaces, planes, axes and points of symmetry, between centers; use of redundant supports; influence of locator geometry on locating accuracy and precision; introduction to restraint analysis; jig and fixture design case study.
ELEMENTS OF PROCESS PLANNING
Identification of elementary surfaces; development of a directed graph; special cases of directed graphs; association of elementary surfaces due to dimensioning constraints; analysis and coding for the realization of elementary surfaces; analysis of technological and economical constraints; influence of dimensional, technological and economic constraints on the final graph; preparation of route sheets; computation and presentation of operation sheet information; final presentation of process plan; case study.
COMPUTER AIDED PROCESS PLANNING
Generative and variant approaches; feasibility and roadblocks; literature review of past and current efforts.
This page was last modified: Monday, 29-Nov-1999 15:38:26 EST.
