Study of the correlation between chip formation mechanism, cutting force and vibrational behavior in the machining of hot working tool steels

• Grant number: 19/09381-3
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: September 01, 2019
• End date: October 31, 2022
• Field of knowledge: Engineering - Mechanical Engineering - Manufacturing Processes
• Principal Investigator: Armando Ítalo Sette Antonialli
• Grantee: João Henrique Schiavon Mota
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil

Abstract

The study of the chip formation mechanism is quite important, as it is directly related to the concepts of the machining technique (for example, forces, work, energy and power) besides the surface integrity of the manufactured components. Tool vibration, specially, shows out to be intrinsically associated to the chip formation frequency and so with cutting forces, with the quality of the machined parts and with tool life. In this project, the evaluation of the correlation between cutting force and tool vibration with the chip formation is proposed for the machining by shaping of two hot work tool steels. Cutting speed and tool geometry, essentially its rake angle will be employed as input variables. Tests will be monitored using accelerometer and load cell. Chips produced will be measured using a vernier caliper in order to calculate the strain ratio considering the theory of orthogonal cutting.