GOST 28915-91

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  ГОСТ 28915-91

GOST 28915−91 welding laser pulse. Button welds. Main types, design elements and dimensions

GOST 28915−91

Group В05

INTERSTATE STANDARD

Welding laser pulse

BUTTON WELDS

Main types, design elements and dimensions

Laser beam impulse welding. Button welds.
Main types, design elements and dimensions

ISS 25.160.40
AXTU 0072

Date of introduction 1992−01−01

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the Ministry of electrotechnical industry and instrument making of the USSR

2. APPROVED AND put INTO EFFECT by Decision of the USSR State Committee on management of quality and standards from 25.02.91 N 162

3. INTRODUCED FOR THE FIRST TIME

4. Limitation of actions taken by Protocol No. 7−95 Interstate Council for standardization, Metrology and certification (ICS 11−95)

5. REPRINTING. February 2005

1. This standard establishes the basic types, design elements and dimensions of spot weld joints of steels, iron-Nickel, Nickel and titanium alloys performed by pulsed laser welding solid-state lasers.

The requirements of this standard are mandatory.

2. For structural elements of welded joints of accepted designations:

and  — the thickness of the edges of the welded parts;

 — the diameter of the welding spot;

the gap between the edges of the welded parts;

and the width of the collar;

 — the height of the flange or flanging of the edges

3. Main types of welded joints shall be as given in table.1.

Table 1

4. Structural elements and their dimensions shall be as given in table.2−15.

Table 2

Table 3

Table 4

Table 5

Table 6

Table 7

Table 8

Table 9

Table 10

Table 11

Table 12

Table 13

Table 14

Table 15

5. Convexity or concavity of the weld points should not exceed 20% of the thickness of the thinner part but not more than 0.1 mm.

6. The displacement of the welded edges in height relative to each other to 20% of the thickness of the thinner part but not more than 0.1 mm.

7. Edges of the parts under the welding not to dull. For thicknesses of the welded parts more than 0.4 mm is allowed dulling welded edges with radius up to 0.1 mm associated with the removal of the burrs on these edges.

8. When welding parts made of homogenous material the offset welds on the seam parts must not exceed 0.2. For inhomogeneous materials the offset value is set in the technical documentation approved in the established order.