Advanced Intelligence for Cryogenic Cooling in CO_2 and Performance Analysis of TiN Coated Insert in Conventional Milling of AISID_2 Steel

摘要

Aim: Without coolant in machining it will affect the tool life, dimensional accuracy, cutting temperature, surface roughness and productivity of any product. So, the main aim of this study is to measured and analyze cutting temperature, cutting force, Surface roughness, tool wear and study of chip morphology by different cutting environment such as dry, wet, and cryogenic CO_2 by using conventional Milling machine, and compared with result. Finally SEM observation has to be done to analyses the tool wear and chip morphology. Materials and methods: In this research work, the size of the work materials used was AISI D2 Steel of size is 150 mm ∈ 50 mm ∈ 50 m with SANDWIK make CVD TiN coated carbide cutting tool insert was used. The time taken for machining is 5 minute and depth of cut were maintain 0.6mm with different lower cutting speed and different feed rate. Results: The use of cryogenic CO_2 cooling in the present work shown in deflation in cutting temperature in the range of 12.5-25% & 6.67-20% respectively as differ to dry and wet machining, and also application in the CO_2 reduces the cutting force 12-17% in dry and 8-13.5%in wet condition. Surface finish of the machined material is improved at an extraordinary level. Tool wear also was detected to be low on the application of CO_2. Conclusion: Under this chosen cutting condition cryogenic CO_2 is the excellent choice for reducing the cutting force, tool wear, and cutting temperature and improved in surface roughness, since the higher cutting temperature requires the higher cooling effect.