Abstract
The problem of machinability evaluation by constant force feed drilling was addressed in this paper. One of the objectives of the research presented in this paper was the decrease of the influence exerted by the presence of chips in drill channels and achieving equipment able to correspond to such a requirement. The use of value analysis method allowed identifying a solution of device able to ensure simpler conditions for materialization of test corresponding to machinability evaluation by drilling under constant force feed. One analyzed various machining schemas for achieving a drilling process. Equipment for drilling under constant force feed was designed. Essentially, a vertical feed motion up down could be achieved by the device for clamping the test piece, while the drilling tool achieves the rotation motion. The feed motion is generated under the action of some weights. One also developed a preliminary experimental research for verifying the conditions of equipment operation.
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