Abstract
The PURPOSE of the paper is to improve the efficiency of milling of large-size parts of panel-, beam-, spar-, frame-type made of high-strength materials on CNC machine-tools. METHODS. The study employs experimental methods to study the issues of milling modes intensification. RESULTS AND THEIR DISCUSSION. The study has been given to the cutting properties of modern tool materials produced domestically for milling high-strength stainless steels, titanium and aluminium alloys. CONCLUSIONS. Application of hard alloys of brands ВП322 and ВРК15 in the designs of single-purpose and special cutters intensifies milling modes by 1.3-2.5 times when machining large-size parts from titanium alloys and high-strength stainless steels. Hard alloy ВК8 intensifies the removal of metal by 3-5 times as compared with the tool made of high-speed steel when milling parts from aluminium alloys.
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