SU1319963A1 - Dummy block of device for pressworking with a shell - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular, to the design of press washers for direct and reverse pressing on hydraulic presses with simultaneous extrusion of the surface layer of the workpiece (jacket). The purpose of the invention is to reduce the labor intensity of the shirt compartment. In the press washer, the side surface is made in the form of two conical sections with a taper angle of 1-5 to the axis of pressing. A cutting edge effect occurs at the junction of the cones, which ensures the separation of the shirt from the press residue. 1 sludge. tt $ (Lx from 00

Description

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The invention relates to the processing of metals by pressure, in particular to the design of press washers for direct and reverse pressing on hydraulic presses with simultaneous extrusion of the surface layer of the workpiece (jacket).

The purpose of the invention is to reduce the labor intensity of the separation of the jacket and to increase the productivity of the pressing process.

The drawing shows the offer press washer together with the shirt and the press residue, cross section.

The press washer contains a working end 1 and a lateral working surface formed by two tapered sections 2 and 3 with oppositely directed tapering, in contact with large diameters, and the taper angle of each section is 1-5 ° to the pressing axis.

At taper angles greater than 5 °, the resistance of the side working is reduced; on the surface of the press washer, at angles less than 1 °. the possibility of sticking of the jacket 4 to the side surface of the press washer increases and the problem arises of separating the press shirt from the press washer.

Transitions from conical sections 2 and 3 to the face surfaces of the press washer are made in the form of smooth curvature, which ensures uninterrupted passage of the press washer when pushing it into the container cavity (not shown).

Press washer works as follows. I

When pressed, the metal flows into the cavity formed by the conical section 2, and is squeezed out in the form of a shirt 4 (thin-walled tube). In this case, the tapered section 2 performs the function of a working path that perceives the main effect of the compression material in this area, and the shirt calibration takes place

dit atop the ridge formed by sections 2 and 3. The accumulation of the pressed metal on the conical section 3 is excluded. In the process of separating the press residue 5 from the press washer, the shirt is torn at the location of the ridge and after the press has been separated, the press washer easily leaves the shirt 4.

The proposed press washer allows for jacketed pressing with a sufficiently high productivity of those alloys that usually require pre-turning of ingots or scalping to obtain a high-quality surface.

Claims (1)

Invention Formula Press washer for a press with a jacket containing. Conjugate face and side work surfaces, characterized in that, in order to reduce the laboriousness of separating the jacket and increasing the productivity of the pressing process, the side work surface is made in the form of two conical sections that come into contact with large diameters and are made with an angle of 1-5 kbnosti axle press washers .. Editor A.Dolinich Compiled by V. Grigoriev Tehred V.Kadar Proofreader A.Obruchar Order 2554/9 Circulation 732. Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4