Scholarlink

<p>This study investigates the machinability of TiN-coated WC tools in dry turning of SUS416 stainless steel, directly comparing their performance with uncoated WC tools. The TiN coating’s microstructure and mechanical properties were characterized by SEM, EDS, nanoindentation, and wear testing. Turning experiments conducted at a cutting speed of 150&#xa0;m/min, a feed rate of 0.2&#xa0;mm/rev, and a depth of cut of 1.5&#xa0;mm. TiN-coated tools exhibit high hardness, low friction, and improved oxidation resistance, resulting in 43% lower flank wear and an extended tool life by 150% compared with uncoated tools. The coating minimizes interface friction, reducing surface roughness from 3.96&#xa0;µm to 2.59&#xa0;µm. Under high-speed machining conditions, TiN-coated tools exhibit more uniform wear without edge cracking and produce regular, uniform chips with reduced adhesion, which enhances cutting stability. This work integrates micro-mechanical and tribological theory with the actual high-thermal-load dry turning behavior. The study also provides annotated wear and chip images as part of the dataset, which can serve as a basis for artificial-intelligence applications in automated wear detection and machining optimization. These findings demonstrate that TiN coatings effectively enhance tool durability and cutting performance in dry turning for high-precision, high-efficiency applications.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Micro-mechanical and Performance Evaluation of TiN-Coated Carbide Inserts in Dry Turning of SUS 416 Stainless Steel

  • 期刊论文

  • 发表日期：

    2025年11月25日

查看全文
  • Kuan-Jen Chen,
  • Jin-Lin Guo

摘要

This study investigates the machinability of TiN-coated WC tools in dry turning of SUS416 stainless steel, directly comparing their performance with uncoated WC tools. The TiN coating’s microstructure and mechanical properties were characterized by SEM, EDS, nanoindentation, and wear testing. Turning experiments conducted at a cutting speed of 150 m/min, a feed rate of 0.2 mm/rev, and a depth of cut of 1.5 mm. TiN-coated tools exhibit high hardness, low friction, and improved oxidation resistance, resulting in 43% lower flank wear and an extended tool life by 150% compared with uncoated tools. The coating minimizes interface friction, reducing surface roughness from 3.96 µm to 2.59 µm. Under high-speed machining conditions, TiN-coated tools exhibit more uniform wear without edge cracking and produce regular, uniform chips with reduced adhesion, which enhances cutting stability. This work integrates micro-mechanical and tribological theory with the actual high-thermal-load dry turning behavior. The study also provides annotated wear and chip images as part of the dataset, which can serve as a basis for artificial-intelligence applications in automated wear detection and machining optimization. These findings demonstrate that TiN coatings effectively enhance tool durability and cutting performance in dry turning for high-precision, high-efficiency applications.