Method of strain treatment of bars from metals and alloys

FIELD: technological processes; metallurgy.

SUBSTANCE: stock is assembled by means of laying of bars from metals and alloys in the form of packet. Assembled stock is deformed by means of equally-channeled angular pressing by punching of mentioned stock in the form of packet of bars through crossing vertical and horizontal channels of matrix. After that the mentioned stock is separated into bars that are calibrated to prepare finished bar.

EFFECT: reinforced bars from metals and alloys.

2 cl

 

The invention relates to a pressure treatment of materials, and in particular to methods of hardening metals during processing.

A method of obtaining bars of the alloys according to which is made from an alloy by extrusion or produced by cross-helical rolling semi-finished products in the form of rods, heated them and are made of semi-finished bars and rods, rotary forging [RF patent 2162900, MKI C22F1/18, SS 1/02, publ. 10.02.2001].

The disadvantage of this method is the lack of efficiency of the hardening material.

A known method of deformation processing bars, close to the invention to the technical essence and the achieved positive effect consists in the Assembly of the workpiece by placing the package bars of metals and alloys, the deformation of the workpiece, the separation of the rods and the calibration to the finished rod [EN 2146975 C1, 27.03.2000, VS 1/00, 5 S.(prototype)].

The disadvantage of this method is the impossibility of intensive plastic deformation of the bars.

The objective of the proposed method is to develop a method of producing a hardened rods of metals and alloys.

This object is achieved in that in the known method of deformation processing rods of metals and alloys, which consists in the Assembly of the workpiece by placing the package bars of metals is alloys, the deformation of the workpiece, the separation of the rods and the calibration to the finished rod, according to the invention, the deformation of the workpiece is carried out by equal channel angular pressing by pushing the workpiece through intersecting vertical and horizontal channels of the matrix.

In addition, this object is achieved:

- if the Assembly of the workpiece is performed by twisting the bars.

The proposed solution provides strengthening ligaments rods of metals and alloys and efficiency technologies deformation processing due to the simultaneous hardening of the few metal bars.

Equal channel angular pressing of the workpiece in the form of twisted rods of metals and alloys and the torsional deformation of the workpiece composed of rods, in a horizontal channel matrix allows you to increase the intensity of plastic deformation in a single processing cycle.

The method is as follows.

The workpiece is composed of a bunch of metal rods, placed in a vertical channel using a punch deform in the horizontal channel. In the process of pushing rods are subjected to plastic deformation, grinding grain and hardening of the material.

To achieve high degrees of plastic de is ormeci, deformation processing is subjected to the workpiece collected by twisting rods of metals and alloys.

1. Method of deformation processing rods of metals and alloys, including the Assembly of the workpiece in the form of a package stacking bars of metals and alloys, the deformation of the assembled workpiece, the division into rods, which are calibrated to the finished rod, characterized in that the deformation is carried out by equal channel angular pressing the punching blanks collected workpiece in the form of a package of rods through the intersecting vertical and horizontal channels of the matrix.

2. The method according to claim 1, characterized in that the Assembly of the workpiece is performed by the torsion bars.



 

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