Development of the method of direct temperature measurement for gear cutting of cylindrical gears by hob milling

Abstract

Abstract. The availability, adaptability, reliability and productivity of modern industrial complexes, maintenance costs, energy costs and industrial production costs depend also on the intensity of wear of the elements of tribo-mechanical systems. Gear cutting operations are usually a bottleneck of production, especially in higher types of production. Therefore, the necessity of researching the process of gear cutting by hob milling is obvious. In the paper a part of the results related to the possibility of direct measurement of the temperature in a very complex process of gear cutting of cylindrical gears by hob milling is given.

Tribological researches of triboelements topography of hob milling process of cylindrical gear serration

“…Most of the hob milling tools can be classified into three groups according to their design ( Fig. 7a [2][3][4][7][8][9]). Integrated hob milling tools can be manufactured from conventional high-speed steel, high-speed steels produced by sintering and for smaller modules made of cemented-carbide.…”

“…The hob milling tools with changeable teeth beside that they allow larger constructive back angles, they also have a relatively large, usable cutting length (see Fig. 7a [2][3][4][7][8][9]). Various variants of hob milling tools that combine different processes such as roughing and finishing and machining of chamfers for removing irregularities ( Fig.…”

“…Various variants of hob milling tools that combine different processes such as roughing and finishing and machining of chamfers for removing irregularities ( Fig. 7b [2][3][4][7][8][9]) have also been developed. In order to increase the productivity of the hob milling, gear cutting process is very close to the limit of the technological capabilities of the machine tools and the hob milling machines.…”

“…The gear is an element of a large number of tribo-mechanical systems. The geometrical parameters of the hob milling, the accuracy of the profiling and the accuracy of manufacture significantly affect the productivity and machining costs [2,3,7,22,23,27]. In this paper, wear and roughness of the real hob milling tool, the topography and roughness parameters of lateral flank and tooth-face of the model hob milling tools are analyzed before and after gear cutting of cylindrical gears.…”

“…Generalised information about a production environment in the 21st century is given in Fig. 1 [1][2][3] where can be seen also a number of factors affecting the world market. Furthermore, the rapid development of industrial production in the world has caused the need for extensive research in all fields, even in the field of machining.…”