SU988480A1 - Method of heat cutting-out of oblique edge parts from sheets - Google Patents

Description

(54) METHOD OF THERMAL CUTTING OF DETAILS WITH SHOT FROM SHEETS

one

The invention relates to gas flame, metal processing and can be used in mechanical engineering.

The known method of thermal cutting parts with bevel edges of sheets, in which two cutters tilt in different directions at an angle of bevel edges for welding and then move them along the cutting line 1.

The disadvantage of this method is its low efficiency due to the need for two cutters for its implementation.

Also known is a method of thermal cutting parts with a bevel of the edges of the sheets, with which the cutter is tilted at a desired angle to the surface of the sheet being processed and then moved along the cutting line 2.

However, this method does not provide cost-cutting of the metal due to the presence of waste cutting.

The aim of the invention is to reduce metal consumption by reducing waste.

This goal is achieved in that according to the method in which the cutter is tilted at the required angle to the surface of the sheet being processed and then moved along the line of the cut, a blank with a width of B 2C-S-tgot is cut out of the sheet, where C is the required width of the part, S - total area of the sheet being cut, p. - angle 5 of the inclination of the cutter, and then cut this workpiece with an inclined cutter into two equal parts.

The drawing shows the cut blank, general view, and scheme of implementation

10 ways.

The blank consists of parts 1 and 2.

The method is carried out as follows.

15 From a sheet of thickness S, cut a blank of the required length with a width of S-tgoc, where C is the required width of the part, ct is the angle of inclination of the cutter equal to the required angle of beveling of the edges for welding. Then, using a cutter inclined to the surface of the sheet being cut at an angle L, cut the workpiece into two equal parts, thus obtaining two identical parts 1 and 2. At the same time, no scrap metal is formed.

Compared with the basic method, taken as a prototype, the use of the proposed method allows to reduce the consumption of metal in the manufacture of sheet-type parts with strips of edges for welding.

Claims (2)

Invention Formula A method of thermally cutting parts with a bevel with a sheet edge, in which the cutter is inclined to t under the required angle to the surface of the sheet being processed and then moved along the cutting line, characterized in that, in order to reduce metal consumption by reducing the amount of waste, a blank of width B 2C-S-tgoC, is pre-cut out of the sheet. Where C is the required width of the part, S is the thickness of the sheet being cut, OS is the angle of inclination of the cutter, and then cut this workpiece into two equal parts . . Sources of information taken into account during the examination 1. Schaller L. Optical markup and automatic oxygen cutting. M., “Mechanical Engineering, 1966, p. 47, 48. 2. Tolovchenko V.S. and others. Heat cutting metals in shipbuilding. L., “Shipbuilding 1975, p. 40 (prototype). P / 1 OS pejQ bone