SU1140875A1 - Method of making components of ribbed-plate type - Google Patents

Abstract

A METHOD FOR GETTING DETAILS OF THE PLATE TYPE WITH PLAINING, mainly along the contour, consists in applying a clamping force to the workpiece and applying a deformation force to the local areas located on the opposite side of the workpiece, which is different in that, in order to improve the efficiency of the process, as the initial workpiece a flat workpiece with an allowance along the perimeter, and ycarftie deformation during the formation of finning is attached to the stock of the workpiece at an angle to the direction of application clamping force.

Description

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The invention relates to the processing of metals by pressure and can be used to produce parts with one-sided irrigation.

There is a known method for producing parts with irregularity, which consists in deforming the surface of the workpiece and forming on it the fins Cl 1 "

The disadvantage of this method is a significant consumption of metal going to the blister during the design of the ribbing contour.

There is a known method of obtaining details such as plates with irrigation, consisting in applying a clamping force to the workpiece and applying a deformation effort to local areas located on the side of the workpiece S opposite to the forming finning.

The disadvantages of this method are the presence of significant distortion forces during the deformation, as well as a significant consumption of metal production.

The aim of the invention is to increase the efficiency of the process.

The goal is achieved by the method of obtaining parts such as plates with irrigation mainly along the contour, which imposes a clamping force on the workpiece and exerts deformation forces on local areas located on the opposite side of the workpiece opposite the formable finning, use a flat workpiece with an allowance along the perimeter, and the force of deformation during the formation of the fins is applied to the stock of the workpiece at an angle to the direction of application of the clamping force.

Fig. 1 shows the implementation of the proposed method prior to the start of the deformation process, and in Fig. 2, the same, after the completion of the deformation process.

The method is carried out in a die having a matrix 1, along the perimeter of which the full shoulders, ki 2, ejector 3 and punch 4 with depressions 5 in the shape of a given fin are made. The blank 6 has technological allowances 7.

The method is carried out as follows.

A blank 6, in which it is necessary to perform the fins along the contour and on which technological allowances 7 are provided along the contour, is placed on the matrix 1. At the same time, the ejector 3 is in the upper position under the action of the hydraulic cushion of the press. When the working stroke of the press, the punch 4 is lowered down in contact with the part 6. By pressing the hydraulic cushion of the press applied to the punch 4, the workpiece 6 is clamped between the punch 4 and the ejector 3 over the entire area of the press ram down the workpiece 6 together with the punch 4 and the ejector 3 also moves down. At the moment of contact between the workpiece 6 and the shoulders 2 of the matrix 1, the metal is deformed in the upstream part of the workpiece 6. Since the workpiece 6 is clamped between the punch 4 and the ejector Ates 3 and its thickness remains unchanged, the metal is displaced from the process emy: allowances, is re-distributed and filled in the recess 5 of the punch 4,

The proposed method can be made sheet parts, finned both on the external and internal contour, as well as a mixed configuration.

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Example. The fins are made by stamping aluminum hard-top krpeck. Use the workpiece size 460X250 mm and a thickness of 10 mm with technological allowance along its contour of 10 mm. For the implementation of the method used

P-237 press. 2000 ton force. I

On the press set stamp described design. In the punch of the punch there are recesses for fins 4 mm wide and 10 mm deep. On the stamp matrix, the shoulders are beveled at an angle of 30. The entire area of the krppka is clamped between the ejector and the punch, and when the clamped part moves down, the metal, in contact with the die, from technological allowances flows into the deepening of the punch. The result is a crush of the same size of 460Л250 mm with an irrigation of 4X10 mm.

31140875

The use of the invention of the equipment's proper capabilities, bakes a reduction in the effort expended, maintaining the initial pressures unchanged and expanding the thickness of the part and reducing waste.

/ 7roluz

Claims (1)

METHOD FOR PRODUCING DETAILS OF TYPE OF PLATES WITH CIRCULATION mainly along the contour, consisting in applying clamping forces to the workpiece and applying deformation forces to local sections located on the side of the workpiece opposite to the formable ribbing, characterized in that, in order to increase the process efficiency, the initial workpiece is used a flat workpiece with an allowance around the perimeter, and the deformation force in the process of forming fins is applied to the allowance of the workpiece at an angle to the direction of application of the reinforcement clamping.