Analysis of Static and Dynamic Characteristic Angles of Hobbing Cutters

Abstract

In recent years the demand for gears has increased due to changes in market demand The accuracy and quality of gears play an essential role in many mechanical products because the design and manufacturing accuracy of gears often directly affect the price of equipment and its processing efficiency In the gear-making part it can be roughly divided into forming method and generating method This paper uses the hobbing in the generating method to do research Hobbing is the most efficient and widely used method of gear manufacturing The hob is also a cutting tool with high precision It attaches great importance to the grinding of the cutting edge The purpose is to confirm the correctness of the tooth profile of the hob cutter In this study the characteristic angles of the hob is the main topic For the characteristic angles of the hob a mathematical model and flow for calculating the angles are established The static system and the dynamic system are also established by using the ISO tool angle specification Then the numerical results are used to analyze the characteristic angles variation trend and characteristics of each cutting edge under different grinding conditions With the mathematical model established in this paper it offers a more convenient method to discuss the characteristic angles in hob design And the parameters in the mathematical model also can be rewritten to obtain the characteristic angles results under different design conditions

Date of Award	2019
Original language	English
Supervisor	Psang-Dain Lin (Supervisor)