Temperature and Heat Partition Testing in the Cutting Zone for Turning AISI 321 Steel

Abstract

This article shows selected results of experimental tests and the results of analytical and numerical modelling of the thermal characteristics of the cutting process. The tests were conducted for the case of the dry turning of austenitic steel AISI 321 with cutting tools with a flat rake face. The research aimed to determine the actual division of thermal fluxes in the zone of contact between the chip and the rake face. As a result of such work, a formula for a new heat partition coefficient and a formula for calculating the average contact temperature were developed. The results showed that the formulas developed can be a useful tool to estimate heat distribution in the cutting zone quickly.

Effect of Composite Material Fixing on Hole Accuracy and Defects During Drilling

“…Research [25] has also showed that the highest surface roughness is located in the hole at the entry of the drill into the material, compared to the roughness measured in the hole depth center [25]. There also exist other treatment and measure methods ensuring improved surface roughness [28,29] thermal characteristic [30] and reduced delamination [31,32]; however, they have not been used for the treatment of polymer composites yet.…”