The permanent connection, consisting of the mating parts of a closed loop, and method for producing such compounds

 

(57) Abstract:

The invention relates to mechanical engineering and can be used when connecting parts of different desvarieux materials, such as metal-ceramics, aluminum-steel, titanium, stainless steel, etc., the Connection of the mating parts of a closed loop occurs due to the wicking material in one of the grooves, and the grooves perform around the perimeter of the pair at a distance from each other. Item smaller sections give more detail of the melt. On the second part can be done flange at a distance equal to the distance between the first grooves and the cross-sectional area equal to the cross-sectional area of the grooves. Effect: possibility of connection of details from desvarieux materials. 3 Il.

The invention relates to the field of engineering, namely the permanent connections of parts from different desvarieux materials, such as metal-ceramics, aluminum-steel, titanium, stainless steel, etc. and can find application in any industry (aviation, space, malastrana and so on).

From the patent literature it is known, the permanent connection of the parts due to plastic deformation at SG L 13/00. This connection consists of two concentric connected details with tucks on the outer surface of one and other internal parts, and a liner of plastic material. The liner is placed between the joined parts, squeeze them, and the insert material flows in tuck parts, connecting them.

This connection has a number of disadvantages: excess elements, there is no reliable control flowing of the material of the liner tuck the connected element, which in turn affects the reliability of the connection. Additionally, you have expensive equipment and tools.

Closest to the proposed method is a method of joining parts of the shaft sleeve, and. C. N 740470 B 23 P 11/02, namely, that prior to Assembly on the contacting surfaces perform to deepen and connect the parts by plastic deformation of another part.

The disadvantage of the above method is that there is no reliable control flowing of the material of one part in deepening the other, and besides, this way you can connect the parts of the same plasticity, which limits the scope of its application.

The problem solved by the invention, the creation of such a method, when Otorohanga visual inspection of the quality of the connection.

This task is solved in that in the method of obtaining permanent connection of the mating parts of a closed loop due to the flowing of the material of one of them in the groove of the other, including the implementation of the grooves around the perimeter of the pairing, the introduction of the details of a smaller cross-section in detail of a larger cross-section, carry out the connection of the associated components by melt or effort coaxial grooves.

In addition, to achieve the goal of the applied force may be a force of compression, and before the coupling parts on the perimeter of one of them at a distance equal to the distance between the grooves of the other, doing the shoulder, the cross-sectional area equal to the cross-sectional area of the grooves, the latter being fitted against the shoulder, and control connections are on the outer surface of the part having the shoulder.

In Fig. 1 shows a General view of the detachable connection, obtained by the proposed method, Fig. 2 and Fig. 3 - connect the details.

The permanent connection consists of two parts of a closed loop 1 and 2. In part 2 made of the groove 3 located around the perimeter of the coupling parts 1 and 2. In part 1 has a flange 5 at distance

A method of obtaining a permanent connection of the mating parts of a closed loop 1 and 2 is due to the wicking material 4 one of them in the groove of the other. After entering the details of a smaller cross-section 2 in more detail section 1 establishes connection through the melt or the effort of axial grooves 3. This may be a result of the compression part 1 above the grooves 3 part 2 subcatname rollers on a lathe or compression knives stamp on the press.

In the case where it is important on the surface of the joined parts have no signs of deformation and to obtain a connection not only durable, but also sealed, the surface 1 perform the shoulder 5, the cross-sectional area equal to the cross-sectional area of the grooves 3. With the introduction of parts into each other to produce the combination of the flange 5 with the grooves 3. The connection parts are produced, for example, in a welding device, with non-consumable electrode without filler material. When this happens, the local melt flange 5 and the material of the workpiece 1, which flows into the groove 3 of part 2, filling her, filling the grooves 3 easily and reliably monitored visually complete melt of the flange 5, and therefore, smooth outer PowerGUI for frames mountain bike. Tests of these sites showed excellent results.

A method of obtaining a permanent connection of the mating parts of a closed loop by flowing into the grooves of one piece of material to another, when you are grooves around the perimeter of the pairing, enter the item a smaller cross-section in detail of a larger cross-section and carry out the connection of the associated components by melt, characterized in that the material of the joined parts are not welded between the materials, while on the other pre-perform the shoulder at a distance equal to the distance between the grooves of the workpiece, the cross-sectional area equal to the cross-sectional area of the grooves, the grooves have against the shoulder, and control connections are on the outer surface of the connection.

 

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SUBSTANCE: method comprises steps of separately making metallic convex bottoms with cylindrical collar and backing ring. Thermal expansion factor of backing ring exceeds that of bottoms; outer diameter of backing ring provides close fit of bottoms onto it at 20°C; cooling preliminarily assembled backing ring with bottoms until cryogenic temperature; sliding bottoms on backing ring in cooled state until mutual touch of cylindrical collars of bottoms; heating assembly up to 20°C in order to provide close fit of backing ring in cylindrical collars of bottoms; welding bottoms along butt of assembly and then removing backing ring by chemical milling.

EFFECT: simplified process of making envelopes with enhanced mass characteristics.

2 cl, 4 dwg, 1 ex

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