Dry Milling of the Ultra-High-Strength Steel 30CrMnSiNi2A with Coated Carbide Inserts

doi:10.1007/s12204-013-1410-5

上海交通大学学报（英文版） ›› 2013, Vol. 18 ›› Issue (4): 468-473.doi: 10.1007/s12204-013-1410-5

Dry Milling of the Ultra-High-Strength Steel 30CrMnSiNi2A with Coated Carbide Inserts

NIU Qiu-lin1 (牛秋林), DONG Da-peng1 (董大鹏), CHEN Ming1* (陈明), ZHANG Yu-sheng2 (张余升), WANG Cheng-dong1 (王呈栋)

(1. School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 2. Shanghai Aerospace Equipments Manufacturer, Shanghai 200245, China)

出版日期:2013-08-28 发布日期:2013-08-12
通讯作者: CHEN Ming(陈明) E-mail:mchen@sjtu.edu.cn

Dry Milling of the Ultra-High-Strength Steel 30CrMnSiNi2A with Coated Carbide Inserts

NIU Qiu-lin1 (牛秋林), DONG Da-peng1 (董大鹏), CHEN Ming1* (陈明), ZHANG Yu-sheng2 (张余升), WANG Cheng-dong1 (王呈栋)

(1. School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 2. Shanghai Aerospace Equipments Manufacturer, Shanghai 200245, China)

Online:2013-08-28 Published:2013-08-12
Contact: CHEN Ming(陈明) E-mail:mchen@sjtu.edu.cn

摘要/Abstract

摘要： The ultra-high-strength steel (UHSS) plays an important role in the mechanical industry because of their special performances. The machinability of 30CrMnSiNi2A steel was studied in dry milling with two different coated tools in the present work. This paper introduced that 30CrMnSiNi2A steel was a kind of difficult-to-machine materials. The results showed that the cutting force components of feed direction and cutting width direction, i.e. Fx and Fy, increased slightly with increasing the cutting speed and feed rate. The values of axial force component Fz were much larger than Fx and Fy, and increased obviously with increasing the milling speed. The workpiece surface had the minimum roughness at the cutting speed of 150 m/min. The physical vapor deposition (PVD) coated ((Ti, Al)N-TiN) insert was more suitable for machining 30CrMnSiNi2A steel than the chemical vapor deposition (CVD) coated (Ti(C, N)-Al2O3) insert. Moreover, the main failure modes of PVD-coated insert were micro-chipping and coating spalling. The wear modes of CVD-coated insert were ploughing, coating spalling, and cratering. The serious adhesive wear and the abrasion with some adhesion were the main wear mechanism of PVD- and CVD-coated inserts, respectively.

关键词: 30CrMnSiNi2A, ultra-high-strength steel (UHSS), coated carbide, dry milling

Abstract: The ultra-high-strength steel (UHSS) plays an important role in the mechanical industry because of their special performances. The machinability of 30CrMnSiNi2A steel was studied in dry milling with two different coated tools in the present work. This paper introduced that 30CrMnSiNi2A steel was a kind of difficult-to-machine materials. The results showed that the cutting force components of feed direction and cutting width direction, i.e. Fx and Fy, increased slightly with increasing the cutting speed and feed rate. The values of axial force component Fz were much larger than Fx and Fy, and increased obviously with increasing the milling speed. The workpiece surface had the minimum roughness at the cutting speed of 150 m/min. The physical vapor deposition (PVD) coated ((Ti, Al)N-TiN) insert was more suitable for machining 30CrMnSiNi2A steel than the chemical vapor deposition (CVD) coated (Ti(C, N)-Al2O3) insert. Moreover, the main failure modes of PVD-coated insert were micro-chipping and coating spalling. The wear modes of CVD-coated insert were ploughing, coating spalling, and cratering. The serious adhesive wear and the abrasion with some adhesion were the main wear mechanism of PVD- and CVD-coated inserts, respectively.

Key words: 30CrMnSiNi2A, ultra-high-strength steel (UHSS), coated carbide, dry milling

中图分类号:

TG 506.7

NIU Qiu-lin1 (牛秋林), DONG Da-peng1 (董大鹏), CHEN Ming1* (陈明), ZHANG Yu-sheng2 (张余升. Dry Milling of the Ultra-High-Strength Steel 30CrMnSiNi2A with Coated Carbide Inserts[J]. 上海交通大学学报（英文版）, 2013, 18(4): 468-473.

NIU Qiu-lin1 (牛秋林), DONG Da-peng1 (董大鹏), CHEN Ming1* (陈明), ZHANG Yu-sheng2 (张余升), WANG Cheng-dong1 (王呈栋). Dry Milling of the Ultra-High-Strength Steel 30CrMnSiNi2A with Coated Carbide Inserts[J]. Journal of shanghai Jiaotong University (Science), 2013, 18(4): 468-473.

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Dry Milling of the Ultra-High-Strength Steel 30CrMnSiNi2A with Coated Carbide Inserts

Dry Milling of the Ultra-High-Strength Steel 30CrMnSiNi2A with Coated Carbide Inserts

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