Retrieval of thermal conductivity depth profiles from surface hardened steel

1999 ◽  
Author(s):  
H. G. Walther ◽  
T. T. N. Lan ◽  
P. Kachyna
Keyword(s):  
Thermal Conductivity ◽  
Hardened Steel ◽  
Depth Profiles

Trial on C3N4 Coating Cutter Hard-Dry Cutting on Hardened Steel

2010 ◽  
Vol 33 ◽  
pp. 483-486
Author(s):  
Hai Dong Yang ◽  
Xi Quan Xia ◽  
Zhen Hua Qing
Keyword(s):  
Thermal Conductivity ◽  
Wear Resistance ◽  
Friction Coefficient ◽  
Tool Material ◽  
High Hardness ◽  
Hardened Steel ◽  
Hard Material ◽  
Low Friction ◽  
Dry Cutting ◽  
Coated Tool

The method of “cutting instead of grinding” on hardened steel is always attractive to engineers. To gain this aim the tool material must first be found. C3N4 is a new kind of super hard material and has comparable properties with diamond in high hardness, wear-resistance, low friction coefficient and thermal conductivity. A number of dry-cutting tests were carried out by C3N4-film coated tool on hardened steel, proved the coating tool is suitable for hard dry cutting.

Analysis of the Tikhonov regularization to retrieve thermal conductivity depth-profiles from infrared thermography data

2010 ◽  
Vol 108 (6) ◽  
pp. 064905 ◽  
Author(s):  
Estibaliz Apiñaniz ◽  
Arantza Mendioroz ◽  
Agustín Salazar ◽  
Ricardo Celorrio
Keyword(s):  
Thermal Conductivity ◽  
Infrared Thermography ◽  
Tikhonov Regularization ◽  
Depth Profiles

Reconstruction of radial thermal conductivity depth profile in case hardened steel rods

2009 ◽  
Vol 105 (8) ◽  
pp. 083517 ◽  
Author(s):  
Ricardo Celorrio ◽  
Arantza Mendioroz ◽  
Estibaliz Apiñaniz ◽  
Agustín Salazar ◽  
Chinhua Wang ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Depth Profile ◽  
Hardened Steel

Photothermal estimation of thermal conductivity depth profiles in steel

1997 ◽  
Vol 29 (2) ◽  
pp. 165-169
Author(s):  
Ton Thi Ngoc Lan ◽  
Heinz-Günter Walther ◽  
Do Tran Son
Keyword(s):  
Thermal Conductivity ◽  
Depth Profiles

Cutting Tool Edge Temperature in Finish Hard Turning of Case Hardened Steel

2009 ◽  
Vol 407-408 ◽  
pp. 538-541 ◽  
Author(s):  
Ryutaro Tanaka ◽  
Hiroki Morishita ◽  
Yong Chuan Lin ◽  
Akira Hosokawa ◽  
Takashi Ueda ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
White Layer ◽  
Cutting Speed ◽  
Hardened Steel ◽  
Cutting Test ◽  
Tool Edge ◽  
Cutting Insert ◽  
Finish Hard Turning ◽  
Lower Tool ◽  
Edge Temperature

This study deals with the influence of tool characteristics on the cutting edge temperature in turning case hardened steel. The cutting test is undertaken with the inserts which have different thermal conductivity and coating layer. The tool edge temperature is measured with a two-color pyrometer. The tool edge temperature increases with the increase in cutting speed. The higher thermal conductivity cutting insert causes lower tool edge temperature. The coating hardly affects the tool edge temperature. The white layer thickness increases with increasing cutting speed reaching a maximum at certain cutting speed and decreases with cutting speed.

Friction, Wear and Deformation of Soft Steels Implanted with Ti and N

1983 ◽  
Vol 27 ◽  
Author(s):  
I.L. Singer ◽  
R.A. Jeffries
Keyword(s):  
Friction And Wear ◽  
Hardened Steel ◽  
Steel Ball ◽  
Depth Profiles ◽  
Lubricated Sliding

ABSTRACTFriction and wear measurements were performed with a hardened steel ball sliding against unhardened steels (AISI 10184 304 and M2) implanted with either N+ or Ti+ or both N+ Ti+ ions. Dry and lubricated sliding studies found that: Ti-implantation reduced friction and thereby delayed wear; N-implantation did not reduce friction but delayed wear by increasing the resistance of the surface to shear; and dual implants of N+ + Ti+ showed effects of both implants. Auger sputter depth profiles found the 1018 and M2 surfaces enriched in implanted N and bulk C. No evidence of N migration could be found in heavily deformed surfaces.

Sign in / Sign up

Export Citation Format

Share Document