Design solution of end mills with replaceable non-sharpened plates for processing flat surfaces of cast iron parts

Abstract

Processing of flat extended surfaces of parts made of various types of cast iron is carried out by end mills, which may differ significantly from each other in their structural characteristics. An important role in the choice of milling cutters is played by the physical and mechanical characteristics of cast iron, which, depending on the methods of their production, the content, type and form of carbon in them, and the presence of alloying elements, can have significantly different indicators. However, at the same time, there are a number of properties that combine them into one group of materials and give grounds for setting such a task as finding a universal tool that would make it possible to obtain the surfaces of parts made of high-quality cast iron at minimal cost. Particularly high requirements are placed on the quality and reliability of friction surfaces. The paper considers the designs of existing end mills and cutting plates from leading manufacturers of cutting tools and optimal cutting modes. A comparative assessment of the offer of end mills and their components on the international market of cutting tools for processing various types of cast iron is presented. The analysis of the works of domestic and foreign scientists on the issues of wear resistance of tools with mechanical fastening of cutting plates is carried out, as a result of which it was revealed that when using round cutting plates, they have the best wear resistance indicators. Based on the information developed, we plan to create a universal multi-blade tool that can be used to effectively process the surfaces of parts made of various types of cast iron with high wear resistance.

Keywords

• mill design
• end milling
• cast iron processing
• cutting plates