期刊
MATERIALS
卷 16, 期 19, 页码 -出版社
MDPI
DOI: 10.3390/ma16196408
关键词
wolfram inert gas; incremental forming; single point incremental forming; aluminum alloy; strain; thickness reduction; forces; welded blanks; industrial robot
This study investigates the behavior of tailor welded blanks subjected to a single point incremental forming (SPIF) process. The results show that one-sided welded blanks cannot be successfully formed, while two-sided welded blanks can achieve the desired depth.
The present paper aims to study the behavior of tailor welded blanks subjected to a single point incremental forming (SPIF) process from an experimental point of view. This process was chosen to deform truncated cone shapes of AA1050 aluminum alloy with different thicknesses. A uniaxial tensile test was performed to determine the mechanical characteristics of the alloy. Initial experimental tests implicated the use of variable wall angle parts which were processed on unwelded sheet blanks for determination of the behavior of the material and the forming forces. Afterwards, the wolfram inert gas (WIG) welding technique was used for joining two sheet blanks with different thicknesses either through one pass on one side, or by one pass on both sides. The conclusion of this paper indicates that one-sided welded blanks cannot be deformed successfully without fracture. In case of two-sided welded blanks, the results showed that the desired depth of 25 mm can be reached successfully. In case of the SPIF process, if welded blanks must be deformed, then the suitable method is to weld the blanks on both sides.
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