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Effect of Laser Beam Offset and Filler Wire on Laser Lap-Fillet Welding of Al–Si-Coated 22MnB5 Steel


Laser lap-fillet welding was used to weld Al–Si-coated 22MnB5 steel. The effect of laser beam offset and filler wire on microstructure and mechanical properties of the joint was investigated. Weld depression was observed with the low laser beam offset. Increasing the laser beam offset or adding filler wire was beneficial to good weld appearance. The fusion zone (FZ) consisted of martensite (in Al-deficient regions) and \( \delta \)-ferrite (in Al-rich regions). The amount of \( \delta \)-ferrite with filler wire was less than that without filler wire when the other welding parameters were the same. Three different zones existed in the heat-affected zone (HAZ) with microstructures of martensite (inner HAZ), mixed martensite and ferrite (middle HAZ) as well as tempered martensite (outer HAZ). The outer HAZ with tempered martensite exhibited the minimum hardness (about 250HV0.1). After the tensile test, the specimens with low laser beam offset were fractured at the FZ of the upper sheet, while the specimens with high laser beam offset (more than − 1 mm with filler wire and 1 mm without filler wire) were fractured at the HAZ (the soften zone, outer HAZ). The maximum tensile force was 9581 N with the laser beam offset of 2 mm and with addition of filler wire.

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  1. Karbasian H, and Tekkaya A E, J Mater Process Technol 210 (2010) 2103.

  2. Suehiro M, Kusumi K, Maki J, Ohgami M, and Miyakoshi T, Nippen Steel Tech Rep 88 (2003) 16.

  3. Kim C, Kang M J, and Park Y D, Proc Eng 10 (2011) 2226.

  4. Wang X N, Chen X M, Sun Q, Di H S, and Sun L N, Mater Lett 206 (2017) 143.

  5. Kang M, Kim C, and Lee J, J Laser Appl 24 (2012) 022004.

  6. He X, Qin Y, and Jiang W, J Mater Process Technol 270 (2019) 285.

  7. Siltanen J, Ari M, and Järn S, Phys Proc 89 (2017) 139.

  8. Moon J H, Seo P K, and Kang C G, Int J Precis Eng Manuf 14 (2013) 283.

  9. Gräf S, Gisbert S, and Carlo S, J Appl Phys 107 (2010) 043102.

  10. Gerhards B, Engels O, and Olschok S, Materialwissenschaft Und Werkstofftechnik 50 (2019) 115.

  11. Kügler H, Mittelstädt C, and Vollertsen F, Phys Proc 83 (2016) 373.

  12. Saha D C, Biro E, and Gerlich A P, Scripta Materialia 121 (2016) 18.

  13. Lin W, Li F, Wu D, Chen X, Hua X, and Pan H, J Mater Eng Perform 27 (2018) 1825.

  14. Thakarea J G, Pandey C, Mahapatra M M, and Mulik R S, J Manuf Process 49 (2019) 249.

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The research was financially supported by Shanghai Science and Technology Committee Innovation Grant (17JC1400601) and supported by Shanghai Collaborative Innovation Center of Laser Advanced Manufacturing Technology.

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Correspondence to Youqiong Qin.

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Qin, Y., He, X. & Zhang, D. Effect of Laser Beam Offset and Filler Wire on Laser Lap-Fillet Welding of Al–Si-Coated 22MnB5 Steel. Trans Indian Inst Met 73, 2173–2180 (2020).

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