SU735361A1 - Flat component producing method - Google Patents

Description

(54) METHOD OF MANUFACTURING FLAT PARTS

one

The invention relates to the processing of metals by pressure and can be used in the manufacture of flat parts such as ring sectors.

A known method of manufacturing flat parts of the type of annular sectors from blanks, including the cutting operation along contour 1.

The disadvantage of this method is the high consumption of material in the manufacture of parts such as ring sectors with an angle of up to 150 °.

The aim of the invention is to reduce the consumption of material in the preparation of annular sectors with an angle, - exceeding an angle of 150 °.

This is achieved by the fact that according to the proposed method, a pipe bent to a sector-appropriate angle is used as a blank, and before cutting along the contour it is flattened in diameter until the walls are completely in contact.

FIG. 1 shows a blank, general view; in fig. 2 - ready detail, general view.

To implement the proposed method, a pipe with a diameter D of steel pipes bent on the existing pipe bending equipment along a bend radius R and at a certain angle is used. The bend radius of the pipe and the bend angle correspond to the bend radius along the centerline and the angle of the ring sector. 5 For example, Drp was taken. 30 mm, mm, R 250 mm, and 270 °.

The flattening process was carried out

on the corresponding press equipment. Scientific Research Institutes in the toolboard to complete

contact of the walls before cutting the workpiece along the contour.

The flattened billet has a double thickness. To obtain a finished part such as an annular sector, the flattened billet is cut along the contour, and two finished parts are obtained. The contour cutting is carried out in tool dies using press equipment.

Using the proposed method will allow to obtain a ring sector with an angle of up to 360 ° C. The smallest loss of material, with an increase in KIM to 0.8.

Claims (1)

Invention Formula A method of manufacturing flat parts such as ring sectors from blanks, which includes a cutting operation along the contour, because in order to reduce material consumption in obtaining ring sectors with an angle greater than 150 °, the angle bent to the corresponding sector is used the pipe, and before cutting along the contour, it is flattened in diameter until the walls are completely in contact. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 453224, cl. B 21 D 53/04, 1972. J1i.