Applications of HSS alloys for the production of planetary core cutting heads for tapping holes

Abstract

This article provides for the possibility of manufacturing crown cutters from foreign-made high-speed steel HSS, which is not inferior to other similar alloys. The article presents the geometric parameters for the manufacture of a new crown cutter and its use in the field of mechanical engineering for cutting holes in the manufacture of machine parts and rolled products. An example is also given of connecting new pipeline lines to an existing pipeline, which is under pressure up to 2.5 MPa, in heat supply and water supply networks. Methods for eliminating vibration when cutting holes on pipes and rolled products using special lubricating coolants are considered. An example of an invented device design is given that cuts holes in pipeline networks used under pressure up to 25 MPa in hydrometallurgical plants for gold mining and in the chemical and oil industries. A practical example of replacing expensive (tungsten) carbide alloys with foreign highspeed alloys HSS is also presented.