Aluminum extrusion cold working process:roller correction

Aluminum extrusion cold working process:roller correction

Aluminum extrusion cold working process:roller correction

Aluminum profile shape correction process

1.Cold working range

When aluminum extrusions have the defects such as angle, flatness, opening expanding, closing and longitudinal bending after straightening, cold processing, that is, roller correction method can be used for the shape correction.

2. Determining defect types and processing level

According to the relevant technical requirements and the drawings dimensions and tolerance, determine the roller correction work plan.

3. Roller Choosing

3.1 Angle, flatness, opening expanding and closing defects are used for upper and lower rollers, and longitudinal bending defects are used for upper and lower staggered rollers.

3.2 The size of the defect position after processing should be taken into consideration when matching the rollers to facilitate measurement.

3.3 When there are several defects in aluminum extrusion at the same time, roller correction work should be performed in the following order:

Flatness → Angle → Opening expanding→ Closing → Longitudinal bending

4. Roller installation  

4.1 Under normal circumstances, the hole equipped with the stop roller should leave a deformation gap.

4.2 When two or more groups of rollers are required, the centerline of the rollers holes should be on the same axis.

4.3 The diameters of all the lower rollers must be the same.

The diameters of the upper and lower rollers should be the same as much as possible.

5.Test roller pressure

Start the roller testing, and continuously adjust the diameter of the rollers and the spacer or the distance between the roller and the axis according to aluminum profile shape and rollers to achieve a good processing effect.

6. Roller correction in mass production

After the roller testing are processed, aluminum profiles cannot go to the aging process until they are qualified by the inspectors.

Aluminum profile shape corrector can be used in eliminating aluminum profile dimension and tolerance defects, such as flatness, angle, opening expanding and closing, bending and tolerance problems.

The machine can be applied for different aluminum extrusion shape by changing the rollers size, which increase aluminum profile finished product ratio, reduce NG rate, improve the production efficiency and lead time.

The practice approves aluminum profile shape corrector is one kind of effective machine for aluminum extrusion dimension and tolerance defects correction.

Contact us now for 3 groups, small 5 groups and big 5 groups aluminum profile shape correction machine technical data and price!