Abstract
In order to improve the workability of Austenitic 304 stainless steel, the residual stress of Austenitic 304 stainless steel was studied by cutting the austenitic stainless steel at cryogenic. The temperature field distribution of liquid nitrogen immersed workpiece is analyzed by the finite element software ANSYS, guiding the actual precooling workpiece test. The residual stress of metal cutting is qualitatively analyzed. The cryogenic cutting test under different precooling temperature is carried out, and the cutting force in cutting process is measured by force measuring instrument. DEFORM finite element software is used to simulate the process of cutting at different temperatures, and the temperature distribution in the cutting process is observed by the post processing function. The results show that the cutting force of the cutting process can be increased and the temperature defference of workpiece surface is decreased during the cryogenis cutting. This makes the residual tensile stress decrease or the residual compressive stress increase, and the lower the temperature is, the more obvious the effect is.
| Translated title of the contribution | Investigation into Residual Stress of Austenitic 304 Stainless Steel at Cryogenic Temperature |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 1271-1276 |
| Number of pages | 6 |
| Journal | Binggong Xuebao/Acta Armamentarii |
| Volume | 40 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1 Jun 2019 |