Welding_defect_photo焊接缺陷.pptx
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1、 HWA LEONG MARINE ENGINEERING PTE LTD 17, KIAN TECK AVENUE, SINGAPORE 628902 TEL: 64824833 FAX: 64823485 EMAIL: .sg REG NO: 200718504H GST NO: 200718504H Porosity气孔Root cause:a) Shielding under or over flowb) Wind on open areac) Used fan during welding HWA LEONG MARINE ENGINEERING PTE LTD 17, KIAN T
2、ECK AVENUE, SINGAPORE 628902 TEL: 64824833 FAX: 64823485 EMAIL: .sg REG NO: 200718504H GST NO: 200718504H Porosity气孔 HWA LEONG MARINE ENGINEERING PTE LTD 17, KIAN TECK AVENUE, SINGAPORE 628902 TEL: 64824833 FAX: 64823485 EMAIL: .sg REG NO: 200718504H GST NO: 200718504H Porosity气孔 HWA LEONG MARINE EN
3、GINEERING PTE LTD 17, KIAN TECK AVENUE, SINGAPORE 628902 TEL: 64824833 FAX: 64823485 EMAIL: .sg REG NO: 200718504H GST NO: 200718504H Undercut咬Root cause:a) Voltage too highb) Torch angle incorrect HWA LEONG MARINE ENGINEERING PTE LTD 17, KIAN TECK AVENUE, SINGAPORE 628902 TEL: 64824833 FAX: 6482348
4、5 EMAIL: .sg REG NO: 200718504H GST NO: 200718504H Poor workmanshipRoot cause:a) Missing grinding HWA LEONG MARINE ENGINEERING PTE LTD 17, KIAN TECK AVENUE, SINGAPORE 628902 TEL: 64824833 FAX: 64823485 EMAIL: .sg REG NO: 200718504H GST NO: 200718504H Inconsistent weld sizeRoot cause:a) Lack of skill
5、b) Careless HWA LEONG MARINE ENGINEERING PTE LTD 17, KIAN TECK AVENUE, SINGAPORE 628902 TEL: 64824833 FAX: 64823485 EMAIL: .sg REG NO: 200718504H GST NO: 200718504H Root cause:a) Hand shape on corner incorrect b) Torch moving too fast on cornerUnder fill(corner area) HWA LEONG MARINE ENGINEERING PTE
6、 LTD 17, KIAN TECK AVENUE, SINGAPORE 628902 TEL: 64824833 FAX: 64823485 EMAIL: .sg REG NO: 200718504H GST NO: 200718504H Crack on weld terminate areaRoot cause:a) Weld terminate on center of the weld beadMIG end on front of the weld and near to the thicker wall should eliminate crack issue HWA LEONG
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- Welding_defect_photo 焊接 缺陷