A numerical algorithm for the full coupling of mechanical deformation, thermal deformation and phase transformation in surface grinding

2000 ◽  
Vol 26 (2) ◽  
pp. 148-156 ◽  
Author(s):  
M. Mahdi ◽  
L. Zhang
Keyword(s):  
Phase Transformation ◽  
Numerical Algorithm ◽  
Thermal Deformation ◽  
Mechanical Deformation ◽  
Surface Grinding ◽  
Full Coupling

Continuous Cooling Phase Transformation Rules of High Nb X80 Pipeline Steel

2016 ◽  
Vol 850 ◽  
pp. 916-921
Author(s):  
Pei Pei Xia ◽  
Liu Qing Yang ◽  
Xiao Jiang Guo ◽  
Ye Zheng Li
Keyword(s):  
Phase Transformation ◽  
Cooling Rate ◽  
Acicular Ferrite ◽  
Thermal Deformation ◽  
Pipeline Steel ◽  
Phase Transformation Temperature ◽  
X80 Pipeline Steel ◽  
Continuous Cooling ◽  
Simulation Testing ◽  
Cooling Phase

The microstructural evolution of the high Nb X80 pipeline steel in Continuous Cooling Transformation (CCT) by Gleeble-3500HS thermal mechanical simulation testing system was studied, the corresponding CCT curves were drawn and the influence of some parameters such as deformation and cooling rate on microstructure of high Nb X80 pipeline steel was analyzed. The results show that as cooling rate increased, the phase transformation temperature of high Nb X80 steel decreased, with the microstructure transformation from ferrite-pearlite to acicular ferrite and bainite-ferrite. When cooling rate was between 20°C/s and 30°C/s, the microstructure was comparatively ideal acicular ferrite, thermal deformation accelerates phase transformation notably and made the dynamic CCT curves move upward and the initial temperature of phase transformation increase obviously. Meanwhile the thermal deformation refined acicular ferrite and extended the range of cooling rate accessible to acicular ferrite.

scholarly journals The effects of surface grinding and polishing on the phase transformation and flexural strength of zirconia

2019 ◽  
Vol 11 (1) ◽  
pp. 1 ◽  
Author(s):  
Ji-Young Lee ◽  
Geun-Won Jang ◽  
In-Im Park ◽  
Yu-Ri Heo ◽  
Mee-Kyoung Son
Keyword(s):  
Phase Transformation ◽  
Flexural Strength ◽  
Surface Grinding ◽  
Grinding And Polishing

scholarly journals Study on the Geometrical Accuracy in Surface Grinding. Thermal Deformation of Workpiece in Traverse Grinding.

1993 ◽  
Vol 59 (7) ◽  
pp. 1145-1150 ◽  
Author(s):  
Tokuhiko NISHIHARA ◽  
Shigeki OKUYAMA ◽  
Suehisa KAWAMURA ◽  
Shinsaku HANASAKI
Keyword(s):  
Thermal Deformation ◽  
Surface Grinding ◽  
Geometrical Accuracy ◽  
Traverse Grinding

Analysis of Welding Process for Automotive Rear Cradle

2015 ◽  
Vol 1091 ◽  
pp. 97-101
Author(s):  
Hak Jae Seol ◽  
Kyoung Teak Lee ◽  
Chang Soo Park ◽  
Kwan Bong Yoo
Keyword(s):  
Residual Stress ◽  
Phase Transformation ◽  
Temperature Distribution ◽  
Transformation Temperature ◽  
Thermal Deformation ◽  
Welding Process ◽  
Phase Transformation Temperature ◽  
Side Member ◽  
Cross Member ◽  
Total Model

A rear cradle as one of the suspension system takes a role to connect a tie rod, suspension arm, transmissions and rubber bush. It consists of the side member and cross member which are joined by welding process. However, the rear cradle may be distorted due to thermal deformation during welding process, which cause dimensional tolerance problem when assembling. So, it is necessary to predict the thermal deformation and the optimal welding conditions should be suggested to reduce the dimensional tolerances. In this paper, MAG(metal active gas) welding process was applied in the simulation model using the SYSWELDR, commercial S/W for welding simulation. And then, It should be predicted on the results about the gap and thermal deformation of main cylinder and derived the phase transformation, temperature distribution, residual stress and thermal deformation of total model shape.

scholarly journals Thermal Deformation of Workpiece in Surface Grinding

1976 ◽  
Vol 42 (502) ◽  
pp. 967-971 ◽  
Author(s):  
Kazuhiro YOKOYAMA ◽  
Ryoichi ICHIMIYA
Keyword(s):  
Thermal Deformation ◽  
Surface Grinding

Effect of Hydrogen on Phase Transformation, Thermal Deformation Behavior, and Forming Limit of TC2 Alloy

2018 ◽  
Vol 20 (11) ◽  
pp. 1800690 ◽  
Author(s):  
Yingying Zong ◽  
Bin Shao ◽  
Xingguang Wang ◽  
Bin Guo ◽  
Debin Shan
Keyword(s):  
Phase Transformation ◽  
Deformation Behavior ◽  
Thermal Deformation ◽  
Forming Limit

Analysis of Mechanical Seal Behavior During Transient Operation

1998 ◽  
Vol 120 (2) ◽  
pp. 191-197 ◽  
Author(s):  
S. R. Harp ◽  
R. F. Salant
Keyword(s):  
Thermal Deformation ◽  
Transient Behavior ◽  
Mechanical Deformation ◽  
Contact Forces ◽  
Squeeze Film ◽  
Mechanical Seal ◽  
Mechanical Seals ◽  
Pressure Distributions ◽  
Deformation Mechanics ◽  
Gas Seals

A mathematical model that predicts the transient behavior of gas or liquid lubricated hydrostatic mechanical seals has been developed. The analysis includes an evaluation of the fluid, contact, and deformation mechanics of a mechanical seal subject to constant or varying rotational speed and sealed pressure. Squeeze film effects are included. For gas seals, slip at the walls is also taken into account. Results include predictions of film thickness distributions, contact forces, leakage rates, pressure distributions, heat generation rates, thermal deformation, and mechanical deformation.

scholarly journals Phase transformation as the single-mode mechanical deformation of silicon

2015 ◽  
Vol 106 (25) ◽  
pp. 252103 ◽  
Author(s):  
S. Wong ◽  
B. Haberl ◽  
J. S. Williams ◽  
J. E. Bradby
Keyword(s):  
Phase Transformation ◽  
Single Mode ◽  
Mechanical Deformation
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