Effect of high pressure coolant jet on temperature, chip and cutting forces in turning stainless steel by coated carbide insert

Abstract

High production machining, inhcrenlly generates large amount of heat leads to high culling zone temperature for its higher ~ulting vdocity, feed and depth of cut. Such hi gil ell Lling \cmp",alllfc if not reduced impairs surface integrity of th.o product arid reduce dimeMional accuracy as well as tool life. Conventional cutting fluid can not maintain (his silllutjOl1 properl}'_ Though in lower velocity a smnll amount of [luld enter in to the llllcrtoce lor its capillary action bllt in higher \'clo~ily it is nol evident. As cutting !luid can not r~ach into the chip-lOO! and work-tool inlerface due to low pressure and low boiling temperature, it cannot effectively lubricate and cool the tool and job. Low boiling temperatme cause vapori7alion of cutting fluid and prevent it to enter into cutting interface making a harrier to flow, High-pn:ssuTC coolant (HPC) jd is an effective alternative to reduce temperature anti tool wear. HPC jet applied diagonally to thc in5ert~ cutting edgc remOves heat and reduce tool wear and also provide better lubrication in the lool tip and culliL1~int~rf"ce. Keeping these in view, obje~live of the present work is to m'lk~ an experimental investigation on the role of high pressure cool ing jet in tuming stainless steeL