Basics Of Precision Sheet Metal Fabrication

When you are in need of precision prototyping services you may start off your search

with an internet search engine to check out what kind of products and information you will be able to find. The internet has become more and more of a valuable resource and selling tool where you can find almost anything that you are trying to find from products to information and even customer reviews for a lot of industries. When thinking about prototyping you will need to find a company who can help make prototypes in the kinds of materials that you are trying to find in the sizes that you need. Some prototyping firms are designed to make large prototypes and some are designed to make very small prototypes and you wouldn't want a firm designed to prototype computer components to build a prototype truck engine, or vice versa.

Precision sheet metal fabrication refers the manufacturing of products from materials such as steel, stainless steel, spring steel, titanium, aluminum, copper and brass. The products are normally developed by companies in high-tech industries just like aerospace, automotive, defense and medical. The design files are usually then uploaded into state-of-the-art equipment and manufactured using superior equipment and engineering systems. There are many different precision sheet metal fabrication processes. These include cutting, forming, bending, assembling and finishing.

Cutting sheet metal to size can be done by sawing, shearing or lasering. While shearing was once the standard in the industry, it is rapidly being replaced by lasering. Plasma and laser cutting tables offer a cleaner cut than shearing and can cut through either thin or thick materials-including .500 inch steel-quickly and efficiently. Sheet metal fabrication companies with these capabilities typically have a shorter turnaround time.

Stamping forms the metal and prepares the material for bending and assembling. The formation of the product can include a number of fabrication processes including but not limited to punching, blanking, embossing and deep drawing. It is possible with either a mechanical or a hydraulic press; one is not always better than the other. The best press will actually be determined by the application.

Bending is often a flexible process in precision sheet metal fabrication which allows the formation of different shapes with the use of hammering and press brakes. It entails complex mathematical formulas to be able to obtain the correct bend allowance for the compression and stretching of the material. Lots of companies have found that reverse engineering with the use of CAD programs is the most proper way to calculate the bend allowance.

The minute all of the components are set, they are assembled. Welding might be performed by a professional skilled craftsman, but with programmable spot welders is becoming more and more common. Programmable welders, at times known as robots, make the manufacturing process safer, less expensive, and more efficient. Sometimes riveting and threaded fasteners will also be used to construct the products.

Some products requires additional finishing. The product could possibly be sandblasted and painted or maybe powder coated. Powder coating is a kind of metal coating that is applied as a dry powder as substiture for a liquid. It is actually treated under high heat so as to bind it to the material and for a really durable, hard skin. The finished product is then looked over and offered to the customer.

by: Clifford Krampitz

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