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- Title
Effect of outlet pressure and polymer addition on accuracy of machining stainless steel by abrasive suspension jet.
- Authors
Qiang, Chiheng; Wang, Fengchao; Guo, Chuwen
- Abstract
Abrasive suspension jet (ASJ) is a kind of precision machining technology. In the process of ASJ machining metal, machining accuracy is an important index to measure the machining performance, and machining accuracy is largely related to outlet pressure and polymer addition. Based on the theory of inelastic impact mechanics and viscous fluid mechanics, this paper studied the effect of outlet pressure and mass concentration of polymer on the structure of ASJ, discussed the effect of the change of ASJ structure on its machining accuracy. Mathematical model for predicting the kerf width and depth of machining stainless steel by ASJ was established and solved numerically. Furthermore, cutting experiment was also carried out and it preliminarily proves the correctness of the mathematical model. The results show that the kerf width increases from 2.37 to 3.07mm when the outlet pressure increases from 20 to 30MPa under the material and jet parameters used in this paper. When the outlet pressure ranges from 10 to 35MPa, the kerf depth increases by 1.54mm with an average increase of 5MPa. Compared by ASJ without polymer additives, adding 1% mass concentration of PAM can reduce the kerf width by 33% and increase the kerf depth by 4.9% under 20MPa outlet pressure, and then, adding 1% mass concentration of PAM can reduce the kerf width by 23% and increase the kerf depth by 3.3% under 30MPa outlet pressure.
- Subjects
STAINLESS steel; METAL cutting; MACHINING; ABRASIVES; FLUID mechanics
- Publication
International Journal of Advanced Manufacturing Technology, 2021, Vol 117, Issue 3/4, p889
- ISSN
0268-3768
- Publication type
Article
- DOI
10.1007/s00170-021-07803-y