Surface Integrity Evaluation of Turning With Auto-Rotating Tool

Abstract

The technical practice requirements comes to have increased demands on higher productivity, speed and quality of the machining process of various materials. Hard to machine materials, whose machining led to the development of turning with rotating cutting edge are not an exception. The machining process of auto-rotating tool is more complicated than the conventional process of turning, especially for the process of reshaping cutting layers into chips. There is a significant load in the system, that may affect the life of the cutting edge of the tool as well as the whole system and also in the final extent of the qualitative parameters of the workpiece (product / product). The article specifies the knowledge and findings of measurement in machining material 100Cr6 with an auto-rotating tool. The measurements were conducted to evaluate the integrity of the surface (roughness) of the workpiece to the impacts of cutting conditions, in particular the feed and the cutting edge inclination. It also analyzes the presence (size, character, action) of residual stresses concentrated in the surface layers of the workpiece by changing the cutting conditions.

Evaluation of Surface Roughness after Actively Rotary Turning Method

“…2 Setting of rotating turning tool with respect to the workpiece [2] The machined surface using lathe-turning has a visually different surface than that achieved by conventional turning. [5] Given the characteristic shape of the cutting edge of an unconventional tool, its kinematics and geometry, it is necessary to derive relations to determine the height of the unevenness after turning with such a tool. [6] It can be stated that the height of the unevenness of the machined surface depends on the tool radius, the cutting edge inclination angle and the feed rate.…”

“…[6] It can be stated that the height of the unevenness of the machined surface depends on the tool radius, the cutting edge inclination angle and the feed rate. [1] Surface integrity was dealt with by Struharňanský [7], who monitored the roughness parameters after machining with a rotary turning tool compared to a conventional turning tool. According to his findings, turning with a rotary tool exhibits lower surface roughness values under identical cutting conditions.…”

“…According to his findings, turning with a rotary tool exhibits lower surface roughness values under identical cutting conditions. [7][8] Fig. 3 Scheme to determine the theoretical amount of unevenness [2] The unconventional turning rotation machining scheme (Fig.…”