JPS6087987A - Caulking method by laser light - Google Patents

Abstract

PURPOSE:To fix one member and the other member which are difficult to be welded to each other without exerting mechanical force thereto in the stage of combining the two members then deforming partly one member to caulk said materials by melting partly the member by irradiation of a laser to deform the irradiated part thereby caulking the two materials. CONSTITUTION:A mounting hole 1 is provided to one plate-shaped member 1 and a chamfered part 3 is formed to the circumferential edge thereof. A small diameter part 5 to be fitted into the hole 2 and a collar part 6 of a large diameter are formed to the other member 4 which is circular cylindrical. After the member 1 and the member 2 are combined, laser light 8 is irradiated to the outside circumferential part 7 at the end face of the small diameter part 5. A part 9 of the part 5 is then melted to flow toward the part 3 of the one member 1 and is solidified. The other member 4 is thoroughly detained to the member 1 by the flowed part 9 and the collar part 6 by which the two members are eventually axially caulked.

Description

[Detailed description of the invention] [Technical field of invention] The present invention relates to improvements in caulking methods.

Technical background of C%'+3 light and its problems] Generally, welding is often used as a method of joining two parts together, but welding is often used as a method for joining two parts together. , caulking, etc. are used.Generally, caulking involves providing a through hole in one member, and providing a small diameter section and a larger diameter section in the other member to be inserted into the through hole. After inserting the part of the other into 1”818 of one,
Hit the tip of the tip to deform it so that a part of it flows toward one part, and then it is fixed by the large diameter part and this deformed part.

During this process [7th stage], it is unavoidable that a considerable mechanical force is applied to the joint, and undesired deformation becomes a problem, especially for thin plates, etc. was there.

[Purpose of the invention]

The purpose of the present invention is to obtain a method for identifying both parts of caulking without applying almost any mechanical force.
.

[Summary of the invention]

The present invention is a caulking method in which after the two members to be fixed are combined, a part of one of the members is deformed and caulked, and the deformation is performed by bath-melting the part with laser irradiation.

[Embodiments of the invention]

The details of the present invention will be explained below with reference to the illustrated embodiments.

1 and 2 are examples of Jl. +I
One of the members is shaped like Iil''i, and the mounting is done through the hole (2).
is provided, and a recessed portion (3) is formed at its periphery. (4) is the other cylindrical member, and is installed in the hole (2) with a small diameter tili (5) and a large diameter flange (
6) is formed. After combining these as shown in the figure, a laser beam (8) is irradiated onto the outer peripheral portion (7) of the end face of the small diameter portion (5). As a result, the small diameter portion (5
) melts, and the chamfered part (1) of one member (1) melts.
3) side ((fluid, ),!, 1 to become j, this fluid 1 part (9) and tsuba part (6) make the other 7115 month (
4) is completely locked to one of the members (the other member) and is caulked in the so-called axial direction.

Next, Figure 3 and ? The second embodiment will be described with reference to A4 diagrams.

One of the OD members is plate-shaped, and the mounting hole (12) is J.
t;rq, and there is a hole 02 on the top surface for mounting.
Two four parts (IJ (eyes)) are provided on the outer periphery of + in the direction of our company.

05) is the other member, which has a cylindrical shape as shown in FIG. 4, and has a small diameter portion (1G) and a large diameter flange portion 07). As shown in the figure, attach the small diameter part θG) to the hole (+
21 and assemble, so that the outer periphery of the end face of the small diameter part (1G) is in the recess ([ri].

04) A laser beam Q is irradiated to a portion nK, (t!it) opposite to.

As a result, as shown in FIG. 4, the other member (parts 12υ, 12υ of 19 melt f4, flow into the recesses (13) and H, and solidify. As a result, the other member +15) becomes one member 1111. On the other hand, movement in the axial direction and the rotational direction is prevented, resulting in caulking in both directions.

Next, Figure 5 and Part 6 show the third embodiment, which is applied to caulking plastic and metal. (2
1) is one of the members made of glass (-1 plate-like, with 14 mounting holes (221) passing through, and an opening periphery (5 has a rounded part C73). Q9 is The other member is made of aluminum and is formed into a cylindrical shape, has a small diameter part (at the bottom), and has a flange with a zero force.

To swage it to θζ, and to elaborate on the method e, the small diameter part G゛6) is installed in the hole (72 days) by 11j and both members +21.
1, +25).

Thereafter, an annular intermediate member (2!ll) made of brass with a circular cross section is placed in the recess with a V-shaped cross section formed by chamfering. It emits light at several places on the outer periphery of the .

This prevents part C(1) of the other member (25) from melting (2!11). ;'I' = tied/ko-shaped I)j, and the 4 inch solidification gap.And the middle part A)+
t2! II and B1 and one capital A7 (31) and 11
This means that the member on the 1st side (2ω is the axial envelope I) is blocked and IJ1 is closed.

[Zut', Akira's shoes J seal'2] 1. The method of staking using a laser according to the present invention. Since the members are locally melted and deformed to fix the two members to be caulked together, the rectangular tc
There are advantages such as applying a large force to both E and L members, and since laser light is used for the thermal processing, there is no localized damage or negative effects on both members. The effect lasts for a long time.

The gift of the example of the cow hanging 3 is extremely low); 111i
It has a J-gre/ko effect by adding λ to point A).

4 Figure 1111 &”) 1!ii Simple 1 light 41
, I Ill l;-and・4＞2 Figure 2 shows the first embodiment of the present invention.
FIG.

(11, (Ill, ('J11...One member, (
4), (15), +29...other member, f
il, C! 11, C', t-? 'tlS1i
81, 1'Ql,!・ll)...Laser light.

Figure 1 Figure 3 Figure 2 Figure 4 Figure 6

Claims (1)

[Claims] In a caulking method in which one part and another part, which are difficult to weld together, are combined and then a part of the other part is deformed to fix the two parts, the deformation is performed by irradiation and melting with a laser beam. A caulking method using a laser beam characterized by: