通用技术文件
GENERAL TECHNICAL PROVISION
[焊接打磨作业指导书]
[Grinding Working Instruction for welding]
文件代号Document No: BOGIE-GTP-0001
E
日期DATE: 2011-04-08
版本
REVSION: 2
角焊缝fillet weld HY 焊缝 HY weld
3．焊后焊缝的打磨（允许的焊接缺陷的打磨处理）Grinding after welding (grinding for permissible welding defects)
a.焊接接头的打磨。焊后允许对不良的焊接接头进行打磨处理，焊缝表面要圆滑过渡。
Grinding for the welded joints, after welding, it is allowed to carry out grinding for the bad welded joints and the weld surface should be transition smoothly.
b.焊缝余高过大，焊脚过大或角焊接不对称的打磨处理，打磨方向要平行于焊缝受力方向，使用砂轮片打磨后，用锥状砂轮打磨焊缝表面圆滑过渡。
Grinding for the excessive weld reinforcement, the oversize of the weld leg and the asymmetrical fillet weld, the polish direction should be parallel to the welded joint stress direction, and after using the grinding wheel, use the pyramidal grinding wheel to grind the weld surface to transit smoothly. Please see following sketch for grinding:
F:受力方向stress direction
F:受力方向stress direction
G
G
G
G
G :打磨方向 Grind direction
c.轻度咬边的打磨处理。咬边深度不超过0.5mm并且QA确认在标准接受范围内，允许用布砂轮进行打磨处理，打磨时要圆滑过渡。
Grind for mild undercut. The weld with undercut depth no more than 0.5mm and QA has confirmed it acceptable according to standard is permitted to grind with the emery buff for smooth transition.
QA or team leader must be sure undercut less than 0.5mm before grinding. 4．引弧板割除后的打磨。参见文件BOGIE-GTP-0002
Grind after removal of the run-on and run-off plate. Refer to document BOGIE-GTP-0002 5．安全要求：打磨时必须配戴防护眼镜
Safety requirement: when grinding, wear the protection glasses and gloves.
Page 6 of 12
通用技术文件
GENERAL TECHNICAL PROVISION
[焊接打磨作业指导书]
[Grinding Working Instruction for welding]
文件代号Document No: BOGIE-GTP-0001
E
日期DATE: 2011-04-08
版本
REVSION: 2
四.实例说明Example show
错误的打磨方向(红色)与受力方向(绿色)交叉 正确的打磨方向与受力方向一致
以上的打磨是错误的，由于打磨设备使用不当导致母材和焊缝变热。参见板材上退火颜色，焊趾区域仍留有划痕。
Page 7 of 12
通用技术文件
GENERAL TECHNICAL PROVISION
[焊接打磨作业指导书]
[Grinding Working Instruction for welding]
文件代号Document No: BOGIE-GTP-0001
E
日期DATE: 2011-04-08
版本
REVSION: 2
以上的打磨是错误的，咬边消除了，但是表面损坏，划痕与板材交叉。焊趾处有很深的划痕。不允许尖锐的边缘。不允许小弧度，那会引起高的应力集中。
错误的打磨，尖锐且深的划痕
Page 8 of 12
通用技术文件
GENERAL TECHNICAL PROVISION
[焊接打磨作业指导书]
[Grinding Working Instruction for welding]
文件代号Document No: BOGIE-GTP-0001
E
日期DATE: 2011-04-08
版本
REVSION: 2
错误的打磨方向与板材表面交叉
正确的打磨方向平行于板材表面或受力方向
下盖板母材的划痕
不允许这种热的切割损坏，需要被消除。
注意：在移除引弧板的过程中，板材表面打磨不要减小工件原有的宽度。
Page 9 of 12
通用技术文件
GENERAL TECHNICAL PROVISION
[焊接打磨作业指导书]
[Grinding Working Instruction for welding]
文件代号Document No: BOGIE-GTP-0001
E
日期DATE: 2011-04-08
版本
REVSION: 2
与板材交叉的错误打磨示例
与板材交叉的错误正确示例
Page 10 of 12
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