Metal sheet working

SHEET METAL WORKING

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CMF business core is the Sheet Metal Working.

Sheet metal is simply metal formed into thin and flat pieces. It is one of the fundamental forms used in metalworking, and can be cut and bent into a variety of different shapes. Countless everyday objects are constructed of the material. Thicknesses can vary significantly, although extremely thin thicknesses are considered foil or leaf, and pieces thicker are considered plate.

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Sheet metal processing

The raw material for sheet metal manufacturing processes is the output of the rolling process. Typically, sheets of metal are sold as flat, rectangular sheets of standard size. If the sheets are thin and very long, they may be in the form of rolls. Therefore the first step in any sheet metal process is to cut the correct shape and sized ‘blank’ from larger sheet.

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Sheet metal forming processes

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Sheet metal processes can be broken down into two major classifications

• Shearing processes – processes which apply shearing forces to cut, fracture, or separate the material.
• Forming processes — processes which cause the metal to undergo desired shape changes without failure, excessive thinning, or cracking. This includes bending and stretching.
• Finishing processes — processes which are used to improve the final surface characteristics.

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Shearing Process

1. Punching: shearing process using a die and punch where the interior portion of the sheared sheet is to be discarded.
2. Blanking: shearing process using a die and punch where the exterior portion of the shearing operation is to be discarded.
3. Perforating:  punching a number of holes in a sheet
4. Parting: shearing the sheet into two or more pieces
5. Notching: removing pieces from the edges
6. Lancing: leaving a tab without removing any material

Forming Processes

• Bending: forming process causes the sheet metal to undergo the desired shape change by bending without failure.
• Stretching: forming process causes the sheet metal to undergo the desired shape change by stretching without failure.
• Drawing: forming process causes the sheet metal to undergo the desired shape change by drawing without failure.

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Roll forming: Roll forming is a process by which a metal strip is progressively bent as it passes through a series of forming rolls.

With our Roll Bending Machines Jammes, we already phave

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Presses

• Mechanical Press – The ram is actuated using a flywheel. Stroke motion is not uniform. Ref fig.6

Hydraulic Press – Longer strokes than mechanical presses, and develop full force throughout the stroke. Stroke motion is of uniform speed, especially adapted to deep drawing operations

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Dies and Punches

• Simple- single operation with a single stroke
• Compound- two operations with a single stroke
• Combination- two operations at two stations
• Progressive- two or more operations at two or more stations with each press stroke, creates what is called a strip development

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Cutting Machine

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• Straight snip – They have straight jaws and used for straight line cutting. Ref  fig.10

• Curved snip – They have curved blades for making circular cuts

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View more information on Cutting machines

 

Products of "Metal sheet working "

Metal Sheet Production line

Metal Sheet Production line ; Upon the success of the assembly/Machining /welding/cutting/Bending machine and the increasing demand for the customers' product, CMF is requested to design and build a fully automated line for their customer in the metal sheet industry like pole, ...

Automated Line in the metal sheet working

Automated Line in the metal sheet working , CMF has developp automation skills and knowledge to integrate total production line in the metal working industry. CMF develops a through understanding of project expectations, and then conceptualize and make a proposal, technical automated solution ...

Circular Welder

CIRCULAR WELDING MACHINE ; Example of a welding machine for fire extinguishers , . Circular Welder ; . Ability to integrate different technologies MIG - TIG - PLASMA - New Welding LASER. . Feel free to contact us with any requests.

Bending Profiles

Bending Profiles . All types of bending profiles Very powerful machine Fully controlled by hydraulic valves . Bending Profiles . Do not hesitate to contact us for any request