Материаловедение в станкостроении

Abstract

The textbook defines the main task of materials science in the machine tool industry-is the choice of materials and technologies that determine the accuracy of the machine. Structural materials for the manufacture of machine parts, materials of cutting, auxiliary tools and parts of devices are considered. These are the materials of parts of the system "machine-tool-tool-part" - AIDS system, which determines the rigidity of the machine and the accuracy of processing. Possible causes and mechanisms of loss of accuracy and efficiency of the machine are shown: wear and spontaneous change in the size of parts over time, fatigue failure. The principles and recommendations of the choice of materials of steel and cast iron metal – intensive parts and parts of the counter-bodies of sliding and rolling friction pairs, as well as reinforcing and stabilizing processing technologies that ensure the preservation of long-term accuracy of the machine are given. The Appendix contains recommendations on the selection of tool materials for different operating conditions of mills and tools; materials of friction pairs; routing technology for manufacturing precision machine parts. The textbook is intended for bachelors and masters studying in the specialties 15.00 "mechanical engineering", 22.00 "technology of materials" can be used in the training of graduate students of machine – building specialties and to improve the skills of design engineers and technologists of machine-building plants, primarily machine-tool enterprises.