Pages

Monday, January 31, 2011

Roll Forming: Overview

Roll Forming Machine
Diversity of a cross-section can be produced. However, each profile must be created carefully roll kit. Coil design starts with the flower is a sequence of profile cross-sections - one for each roll stand. Shaped coil is then derived from the profile shape. Due to the high cost of a set of coils, the simulation is often used to validate and optimize the design roll forming process to reduce the number of standing and material force in the final product.

Roll Forming Machine that happen to have the advantage of extrusion shapes similar Roll occurring most often light and strong work hardening in the cold. Another advantage is that one can do with or are done. Labor is greatly reduced because the volume is an important consideration in choosing roll forming process.



Roll Forming Machine
Roll Forming Machine is now the capacity to provide for similar products, such as patterns Stud and track a set of new profiles do not need to roll. This is achieved by a separate mill center line and the web page layout, and size of the ears are set using the control panel to move the factory to a central patch increase or decrease such features.



Roll forming lines can be set to configure multiple punch and cut parts for the operation continued. For cutting the cable length can be set to use to cut off before a single die running free through the mill roll, or post a profile to cut off the dead after the roll forming process. Features may be added in trace embossment holes or shear form by punching in a roll forming line These specifications are part applies to the application before the fight before you start forming roll in the application sting middle line in the middle of the roll forming line / process or program chase after the post finished. roll forming. Some lines include roll forming, one of the above, or the use of punch cutting, others include all or part of the program in one line.



Process
Roll forming process is one of the manufacturing process simpler. It begins with a spool, large bar, metal usually between 1 inch and 20in in width and 0.004 inches and 0.125 inches thick, is held by a device called a cabinet strip metal is unrolled, and fed into machines that start with Stock feeding device that connects to a cutting attachments. After attachment to cut metal bars will be entered into the roll forming. Setting these mating die roll was created to create the desired shape in the process of winding, respectively, with different shapes. The form of rolls, these can be shaped flowers, as described earlier progress on / roll bottom, side or a coil winding axis overhung configuration called the roll. This configuration uses a different roll to do the job.

Production rates.
Production rate depends greatly on the thickness of materials and bend radius is affected by the number of stations or the necessary steps. Bend radius for 50 times the thickness of the material of low carbon steel 0.07 in thick, 85 feet per minute from eight stations to 55 stations to 12 feet per minute or 50 feet per minute through 22 stations.

Time taken for one product that will shape can be represented by a simple function. Functions are as follows: the initial stage up = L + Rating / V, where V is the speed of the bar through fpm coil, L is the length of the piece is foot-rolled steel, D the distance between the forming foot stand is, and n. forming a number of stand

In general, roll forming lines can be run from 5 to 500 + feet per minute, depending on the application. In some cases, the limiting factor of active drilling or cutting.

No comments: