Papers by Keyword: Minipore

Abstract: Based on the electric hot method has been applied to turning effectively, this paper analyzes electrical properties of the electric hot cutting micro area, according to contact resistance theory the electrical conduction model of cutting micro area is established, electric hot method applied to minipore drilling of hard-to-cut materials is discussed, it develops a set of electric hot drilling device which is simple and flexible. Under the conditions of the same drilling parameters, electric hot drilling tests and ordinary drilling hole experiment are researched contrastively. Test results show that axial force and torque of electric hot drilling experiment are reduced obviously than that of ordinary drilling holes experiment. Electric heating method applied in drilling process is very effective.

Abstract: This research aims to improve the method of Mini-pore Drilling superimposed an axis vibration for hard-to-cut material of Austenitic Stainless Steel 1Cr18Ni9Ti, as well as to make it easier for the chips to be discharged. A mathematical model of vibration drilling is presented, and the relationship between the vibration parameters and cutting parameters to generate little and short broken-chips in vibration drilling is investigated, analyzed and verified by experiments. The results show that when the processing parameters meet the conditions given in this article, stable and reliable chip-breaking can be achieved. The results provide a theoretical guidance to achieve chip-breaking in mini-pore vibration drilling for hard-to-cut material.

Abstract: Based on reviewing the applications and machining of the stainless steels, the cutting performance of the austenitic stainless steel 1Cr18Ni9Ti is analyzed through the contrastive experiments. This paper studies drilling minipore mechanics of hard-to-cut material—Austenitic Stainless Steel 1Cr18Ni9Ti by simulation and experiment, analogy results displays the trend that drill thrust, torque and temperature changed with amount of feed, it matches with test result in the same cutting condition well. The research results would be of great benefit for the selection of proper tools and cutting parameters in drilling austenitic stainless steels.