Determination of Operation Sequences with Minimum Tool-changes in Mechanical Machining

概要

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In the manufacturing process of a mechanical part, many operations with alternatives can be generated. A method for selecting optimum operations from the alternatives, and then sequencing them in order to satisfy some objectives such as the lowest cost or minimum time, is required. This paper proposes a new method for determining operation sequences that minimize the number of tool-changes. First, sub-sets of operations, in each of which operations can be consecutively executed by one tool are determined from the information on tools, and the precedence constraints of operations. Based on the sub-sets of the operations, an integer programming problem is introduced next to determine the operation sequences that minimize the number of tool-changes. Finally, the effectiveness of the method is clarified through a case study.
一般社団法人日本機械学会の論文
2001-03-15