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Common Welding Marks for Sheet Metal
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Common Welding Marks for Sheet Metal

Author:Site Editor     Publish Time: 2020-08-26      Origin:Site

11 is arc welding without gas shielding. The shape of the sensitive surface of the weld is I-shape. The weld is filled, the entire length of the workpiece is continuously welded, the outer surface is convex, and the inner surface is round.

 1

111 is manual arc welding, fillet weld; weld along Gongniuyuan, the size of weld foot is 2.

Note: The dashed baseline can be omitted.

 2

Fillet weld, there are welds on three sides, a total of 12. 111 is manual arc welding, the entire workpiece (contact) length is continuously welded

Note: The size of welding feet is not required.

 3

Top: Fillet weld, the size of the weld leg is 2, a total of 2 locations, and continuous welding along the contact length of the workpiece (total 5 segments)

Bottom: Fillet weld, the size of the weld leg is 2, a total of 2 locations, and continuous welding along the length of the workpiece (total 1 segment).

4

Top: The shape of the welding seam teaching surface is a unilateral trumpet shape, the welding foot size is 8, and the entire length of the workpiece is continuously welded.

Bottom: Fillet weld, the size of the weld leg is 3, there are welds on three sides, and the entire length of the workpiece is continuously welded.

 5

Double-sided fillet welds, symmetrical joints, weld foot size is 5, the weld section number is 35, weld length is 50, and weld interval is 30.

 6

135 is CO2 gas shielded welding (MAG welding) The shape of the welding seam is a unilateral trumpet, the welding seam is symmetrical, the welding foot size is 10, the entire length of the workpiece is continuously welded, and the outer surface is flat

 7

135 is CO2 gas shielded welding (MAG welding). The shape of the welding seam is V-shaped, the thickness of the welding seam is 3, the outer surface is convex, and welding is applied along the circumference of the workpiece.

 8

111 is manual arc welding, the shape of the welded seam is shaped, and the entire length of the workpiece is continuously welded.

Note: The weld is on the non-arrow side

 9

The shape of the weld surface is a cylindrical plug weld with a plug weld diameter of 5 and 4 uniformly distributed along the 0d circumference.

 10

21 is resistance spot welding, the center of the solder joint is on the contact surface of the two workpieces, the diameter of the solder joint is 16, and each p row has 12 solder joints, a total of 4 rows (two rows on the left and right), symmetrical (along the direction of the car). The solder joints are evenly distributed.

 11

Point the seam, and the center of the welding point deviates from the contact surface position of the two workpieces (the position of the basic symbol is consistent with the deviation direction). The spot welding diameter is 5, a total of 8 points, and the pitch and row spacing are both 35.

Note: The spot welding seam symbol has clearly defined the welding method, and the welding method code may not be marked.

12 

21 is resistance spot welding (if it does not cause misunderstanding, the tail mark can be omitted): the center of the welding spot is on the joint of the two workpieces: the diameter of the welding spot is 5, a total of 4 points, evenly distributed along the 0d circle.

13

Spot welding seam, the diameter of the welding spot is 8, a total of 5 spots, the spot pitch is 40, and the row pitch is 20.

Note: The dot spacing and line spacing dimensions are clearly marked in the figure and do not have to be given in the welding mark.

 14

Resistance spot welding, the diameter of the solder joint is 6, 2 solder joints in each place, 3 places in total.

 15

Seam weld, 221 is lap seam welding (ie seam welding), the center of the weld seam is on the lap contact surface, the weld seam width is 6, and the welding is applied continuously over the entire length of the workpiece.

 16

For seam welding, the center of the welding seam deviates from the lap surface, the width of the welding seam is 6, and the welding is applied continuously over the entire length of the workpiece.

Note: The dashed baseline can be omitted.

 17

23 is projection welding, the cross-sectional shape of the welding seam is I-shaped, and the welding seam is symmetrical. Welding and penetration are applied along the circumference, and there are 2 places.

18

24 is flash butt welding, the cross-sectional shape of the weld is I-shaped, the weld is symmetrical, and the outer surface is a cylindrical surface, with a total of 2 locations.

 19

42 is a friction seam, the shape of the welding seam is I-shaped, symmetrical welding seam, and the outer surface is a cylindrical surface.

 20

781 is stud arc welding, the weld cross-section shape is right-angled three-shape, the weld foot size is 4, the surface is concave, and the circumference of the workpiece is tough.

 21

Fillet weld, the size of the welding foot is 2, and it is applied along the circumference of the workpiece. The brazing method is determined by the process.

Note: The mark below the baseline is the solder grade.

 22

Left: Fillet weld, weld leg size is 5, weld length is 250, there are 4 places in total.

Note: The dashed baseline can be omitted.

Right: Single-sided V-shaped weld, symmetrical on both sides, weld thickness is 5, weld length is 250.

23 


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