Deburring capabilities for miniature precision parts
A study was initiated to determine which of 24 major deburring processes are applicable to the production of miniature precision metal components. Component parts of small precision mechanisms typically require near-sharp edges to assure reliable operation. A burr-free condition also is needed to minimize the possibility of the mechanism jamming in the event that burrs should break loose during operation. In the past, the reliable removal of machining burrs and the protection of the near-sharp part edges have dictated that deburring be performed only by hand. This method is inherently time-consuming and operator-variable. Specifically, the study sought to determine the manner in which the burr size affects the operating parameters of each deburring process, and the extent to which part size, surface finish, and edge radii are influenced by the various processes. Tests were performed on thirteen of the more promising processes. Of these, six were studied extensively, and reports on the individual investigations were published. A summary is given of the data that were obtained from tests which involved 30,000 measurements, a study of published literature, and discussions with hundreds of vendors and users of deburring equipment. The data presented describe the mechanism by which each process operates, define its uses and limitations, and provide the best possible estimate of its quantitative effects. This information can be used in the selection of a deburring process to meet specific part requirements. As a result of this investigation, the conclusion was reached that burrs having a major dimension of less than 25.4 ..mu..m (0.001 inch) can be removed by almost any process without adverse effects on part dimensions or surface finish.
- Research Organization:
- Bendix Corp., Kansas City, Mo. (USA)
- DOE Contract Number:
- E(29-1)-613
- OSTI ID:
- 7145437
- Report Number(s):
- BDX-613-1604
- Country of Publication:
- United States
- Language:
- English
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