Mathematical and Experimental Methods of Studying Metal Cutting Machine Tools when Carriage Guides are Rebuilt Using Polymeric Materials

Metal cutting machine tools constitute the main type of equipment in mechanical engineering. However, friction pairs in machine tools have not undergone any significant modifications for a long time, and the problem of rebuilding worn guides is still relevant. This article describes a method that can solve this problem with the help of modern polymeric materials. To successfully implement the use of polymeric materials in rebuilding friction pairs in machine tools, it is necessary to evaluate tribotechnical characteristics of such materials. As this evaluation is difficult to perform in manufacturing, the study was carried out in laboratory conditions. The compound rest guides of the PAB130 automated lathe were rebuilt. The carriage displacement force was measured and the friction factor was determined on a specially designed test stand using analog-digital converter and computer. The research has shown that this method provides good tribotechnical indicators to the rebuilt surfaces and therefore, is considered promising.

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