The Geometric Surface Structure of EN X153CrMoV12 Tool Steel after Finish Turning Using PCBN Cutting Tools

Abstract

The article presents the results of studying the effects of coated (TiN, TiAlN) and uncoated polycrystalline cubic boron nitride (PCBN) machining blades on the key geometric structure parameters of the surface of hardened and tempered EN X153CrMoV12 steel after finish turning. A comparative analysis of the use of coated and coated cutting tools in finish turning of hardened steels was made. Tool materials based on polycrystalline cubic boron nitride PCBN (High-CBN; Low-CBN) have been described and characterized. The advantages of using TiN and TiAlN-coated cutting tools compared to uncoated were demonstrated. The lowest influence of the feed on the values of all tested roughness parameters was noted for surfaces treated with TiN- and TiAlN-coated tools (both with 50 vol.% of CBN). For uncoated tools (60 vol.% of CBN) for feeds f = 0.2 and 0.3 mm/rev., the highest values of Ra and Rz roughness parameters were found. Moreover, the lack of protective coating contributed to the occurrence of intense adhesive wear on the flank surface, which was also in the range of the feed values f = 0.2 and 0.3 mm/rev. The analysis of material surface after treatment with the uncoated tools with the feed f = 0.2 mm/rev. showed the occurrence of the phenomenon of lateral material flow and numerous chip deflections.

The Effect of Cutting Tool Geometry on Surface Integrity: A Case Study of CBN Tools and the Inner Surface of Bearing Rings

“…Sci. 2023, 13, x FOR PEER REVIEW 3 of 15 ric parameters of the machined surface of hardened and tempered EN X153CrMoV12 steel [23]. Nikai et al conducted a comprehensive study on the performance of different CBN inserts with the same geometry but different coating technologies during the hard turning of AISI 4320 case-carburized steel [24].…”

“…Latosi ńska et al proposed a procedure for the optimization of finishing cutting parameters with minimized specific cutting force, also considering the quality of the machined surface [22]. Ociepa et al studied the effects of coated and uncoated polycrystalline cubic boron nitride (PCBN) tools with TiN and TiAlN on the geometric parameters of the machined surface of hardened and tempered EN X153CrMoV12 steel [23]. Nikai et al conducted a comprehensive study on the performance of different CBN inserts with the same geometry but different coating technologies during the hard turning of AISI 4320 case-carburized steel [24].…”

Ecodesign of the Aluminum Bronze Cutting Process

“…Due to the danger of heating the part during cutting, it is recommended to use a coolant. Under these conditions, the machining of the external surfaces of the parts can be carried out at quite high speeds, and for the internal one's lower speeds are recommended (drilling, reaming), because there is a danger that the bronze chips will adhere to the tool faces [7][8][9].…”

Machining of Inserts with PCD Cutting-Edge Technology and Determination of Optimum Machining Conditions Based on Roundness Deviation and Chip-Cross Section of AW 5083 AL-Alloy Verified with Grey Relation Analysis

“…In machining, the main focus is on reducing machining times while maintaining or improving the quality of the material being machined [1]. To achieve this, cutting tools with the required better properties (e.g., hardness, cutting edge strength, tool life and wear resistance) must be used [2].…”