Cutting orientations for non-complex parts in 4th axis machining

The application of Computer Numerically Controlled (CNC) machining for Rapid Manufacturing processes (CNC-RM) exploits the innate potential of 4th axis machining. The use of an indexer allows the workpiece to be rotated to various orientations which directly increased the region accessible to the cu...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 114; no. 1
Main Authors Zahid, M N Osman, Case, K, Watts, D M
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.03.2016
Subjects
Complexity
Cutting tools
Finishing
Machine shops
Machining
Rapid manufacturing
Tool life
Workpieces
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Summary:The application of Computer Numerically Controlled (CNC) machining for Rapid Manufacturing processes (CNC-RM) exploits the innate potential of 4th axis machining. The use of an indexer allows the workpiece to be rotated to various orientations which directly increased the region accessible to the cutting tool. However, in order to avoid thin webs and preserve tool life, cutting must be executed with a minimum of three orientations even for geometrically simple parts. Recent findings have suggested the separation of cutting orientations into roughing and finishing operations. Thus, the selection of orientations in finishing processes becomes more flexible and independent. This study was conducted to identify the effects of using a minimum of two cutting orientations in finishing operations for CNC-RM applications. This method is only applicable for non-complex parts where all the features can be machined from two directions. The results of the study illustrate the positive effects of minimizing the number of orientations. Despite improvement in machining operations, the complexity in defining the cutting orientations was also reduced.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/114/1/012013