SU707668A1 - Method of manufacturing varying-section profiles - Google Patents

Description

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The invention relates to the processing of metals by pressure to can be used in the manufacture of variable section rolls using longitudinal periodic rolling.

A known method for the production of profiles of variable cross section by longitudinal rolling in the profiled rolls 1.

The known method does not provide the possibility of obtaining profiles of a variable length along the section with a period length that is substantially longer than the circumference of the roll barrel.

In order to ensure the production of products having a variable position of the protrusions along the width of the product with a period longer than the circumference of the roll barrel according to the proposed method, during the rolling process, the workpiece is moved parallel to the axis of the rolls.

During the rolling process, the angle between the roll axes is changed.

The method is explained in the drawings, where in FIG. 1 shows an example of its implementation with one: m smooth and one profiled roll; cha figs. 2 illustrates an exemplary method.

upon receipt of products with a wedge angle of variable length.

A calibrated roller 1 and a smooth roller 2 from a simple-shaped blank 3 roll a strip 4 having a protrusion 5. The blank 3 from the lateral displacement at the entrance to the rollers holds the insertion reinforcement containing the left 6 to the right 7 ruler (or opening box). From the rear side of the rolls, the peal retains the lead lines or boxes (not printed in the drawings).

FIG. 2 both rolls 1 and 2 are smooth.

In order to carry out the process of rolling the strip with a variable position of the protrusion 5 relative to the main part of the strip 4, the lead-in and outlet reinforcement are synchronously moved along the axis of the rolls with a force P sufficient to displace the roll in the deformation zone. The movement of the core reinforcement is carried out according to any given law, and as a result, the protrusion 5 is displaced with respect to the flat part of the profile in each subsequent section.

Sections A and B of the finished product are characterized by the rolled profile in various stages of rolling.

To obtain products with a variable angle of taper and cross-sectional area, simultaneously with the workpiece movement, the angle of inclination of the gladas rolls changes, the size and shape of the gap between the EDES rolls changes.

The proposed method allows for the expansion of a range of profiles obtained by longitudinal rolling by profile rolls.

F o r mula inventions

Claims (2)

1. Method for producing variable section profiles by longitudinal rolling in 07668.4 Calibrated rolls, characterized in that, in order to ensure the production of products, the protrusions are variable in width across the product with a period longer than the circumference of the roll barrel, during rolling, the workpiece is moved parallel to the axis of the rolls. 2. A method according to claim 1, characterized in that during the rolling process the angle between the roll axes is changed. Sources of information taken into account during the examination 1. USSR author's certificate N 329939, 15 кл. B 21 N 8/00, .1970. 1 6 It 3 5.