自動ラッピングシステムにおける最適加工条件の推定方法 : 加工の効率化,最適ラッピングのための表面粗さの改善速度の推定(機械要素,潤滑,設計,生産加工,生産システムなど)

概要

論文の詳細を見る
The lapping process is one of traditional finishing process for improvement of geometrical tolerance and surface roughness. Most of lapping process is conducted by skilled worker as a manual process at present. So, productivity of this process is very lower than other mechanized process and difficult to control. An automated lapping system and optimized lapping slurry for this system were developed from these reasons. The cemented carbide (V 10) was lapped as mirror-like surface using the system with best condition decided from several pre-experiment. In this study, we propose an estimation approach of limit surface roughness and improvement speed of surface roughness on each material without pre-experiments. The limit surface roughness of lapping theory is compared to experimental value. A time constant of improvement curve of surface roughness is estimated experimentally from lapping conditions. Relationship between initial surface roughness Rz_<ini> and limit surface roughness Rz_<lim> was researched. Finally, the estimation approach of them was established by confirmed experiment. It is concluded from the result that; (1) Limit surface roughness is calculated according to the lapping theory. (2) Time constant of improvement curve of surface roughness can be also estimated by lapping conditions. (3) It was become possible to lap without the excess machining and the worsening of form accuracy.
2010-07-25