SU1606287A1 - Method of producing metallic multilayer panels - Google Patents

Abstract

The invention relates to pressure welding with preheating and can be used for the manufacture of multilayer metal panels in various industries. The purpose of the invention is to improve the quality of the panels. Pre-filling sheets are locally interconnected by intersecting zones, at the intersections of which through holes are made with a diameter not exceeding half the width of the join zone. The welded filler sheets are placed in the stamp between the sheets of skins, they are heated and the cells of the filler are molded by supplying gas under pressure between the sheets of the filler, diffusion welding the cells between themselves and with the sheets of skins. During the molding process, the overpressure in the cavity of the casings is monitored, by the increase in which the quality of the casings is judged. 3 il.

Description

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The invention relates to pressure welding with preheating and can be used for the manufacture of multilayer metal panels in various industries.

 The aim of the invention is to improve the quality of the panels by simultaneously controlling the molding pressure with the molding and welding.

Figure 1 shows a packet of sheets of a placeholder in its initial state; figure 2 - the original package in the stamp; on fig.Z - ready panel in the stamp.

The method is carried out as follows.

Previously, sheets 1 and 2 (Fig. 1) of the filler are locally interconnected in intersecting zones 3 and 4, at the intersections of which the through holes 5 with a diameter not exceeding

half the joint width. Then, on the lower support plate 6 (FIG. 2) of the stamp, the skin 7 is placed, the fixing elements 8, the welded sheets of filler 1 and 2, the fixing elements 9 m of the other skin 10 and compress them by the upper support plate 11. The assembly is heated to the welding temperature. In the process of heating, argon is fed into the cavity between the linings through the pipe 12 under pressure, which is evenly distributed through the holes 5 through the two cavities and out through the pipe 13. In order to prevent welding of the sheets 1 and 2, the filler between them maintains a slight pressure by supplying gas through line 14. When the temperature of forming the sheets of the filler is reached, the pressure between them increases and the cells 15 are formed (Figures 2 and 3) and diffused

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xy between soya b1 from a sheet of vocabulary / and 10, In the process of forr-luvangush ycheg. monitored the pressure of the pressure in the cavity of the membrane between the sheathing and deforming the cells / 5 15 ave. with the help of the pressure gauge 16 installed on the water pipe 13; Increasing the distance in the C P n: nnnocTi ix means breaking the 3 m A sat 1ne: -; lm m pro-ipK | - Aries of the Eformu-Yuuy gas through the yyyyeogggi e cavity. With

This process fprg. P1; 3 SROP and NpOi / 13vod t ycTpgvsaHL ie) 1ef8; C 103, Then the operation. yy; t; m; Goat, This allows noBfciCHTb quality / gynepei, With a hole diameter of 14, npsB i asaiiie i half of the height of the com- pound zone is H-; ei; g-sh is provided by oOxoAMi. iaH zones

P p 1/1 wi e p. / ssr;: / raBi i BSj H л nlolayer - well opa1-bl - 13, h: g: Gb, B01STOULIS. | 1 msy 0.8 mm W is located yoga dg ;;; doo them a filler that was molded / from two sheets with a thickness of 1 kt. MaTep iSj i sheets - titanium alloy FiT i4, bmx / filament pulses were welded around the contour, prior to installation, by installing a pipeline for gas supply between them, and the main linkage was mounted; (: a SPECH ..: Welding, At the places where the cross-section of the end-to-end uTBeper jM d le eg;: n: - equal to the floor width of the coil, the Harpesa / iM package was assembled in the die before. During the heating process, the internal cavity between the skin W was filled with sheets argon gas at a pressure of 0.1 MPa, and in order for P1 to prevent the welding of filler sheets between co oh The creation between gas pressure on the order of 0.4 MPa. Upon reaching the molding temperature between the sheets of the core pressure was raised

up to 1.5 MPa and the filling cells were molded, interconnected with each other and with the casings. During the molding process, the excess pressure in the cavity of the casings was monitored;

su d it about the quality of the panels

After welding, the panel was cooled and removed from the punch and the panel was visually inspected.

Claims (1)

Invention Formula A method of manufacturing metal 11 foot-layer panels containing skins 11 between them a filler, in which the package is assembled by locally joining the sheets of the filler, placing them between the skins and forming the cells of the filler by supplying gas under pressure between the sheets-1 of the filler and diffusion welding the cells between themselves and with sheets of skins, characterized in that, in order to improve quality by simultaneously controlling with molding and welding, the control of excess pressure in the cavity of panel skins Through holes with a diameter not exceeding half of the thickness of the joint zone in the places where the filler sheet is locally joined. 16 13 -7 7 //// 7 ////// // 7 / fi FIG. 2 eleven / Fig.Z