How to Make Aluminium Circle Sheets for Cookware

At present there are two methods to make aluminium circle sheets for cookware. The first is by an automatic production line which deals with an aluminum coil stock directly until aluminum circle/disc pieces are produced. If your entire focus is to provide aluminum circles then you would probably want to go with such a workshop equipped with several different sizes of punch, accompanied by different tool paths, in order to yield differently sized circles. The other, which we will talk about here, entails more labor work.

With this method you need three steps to make aluminium circle sheets for cookware: aluminum coil sheet stock preparation, square cutting and circle cutting. You should choose correct coil or sheet stocks based on your practical needs. Details include alloys, tempers, thicknesses and widths. For example, you might want aluminium circle 1050 of thickness 0.5mm and diameter 90mm, then you should prepare 1050 sheet stocks of 0.5mm thick and over 90mm wide. Usually sheet stocks are a better choice because there’s no need for straightening them before square cutting, during which a cut-off shear uses a table or other support to put your sheet stock in place to run through the cut off shear. The shear is similar to a punch, but with straight blades since you just need to cut the size of square off. You can set different sizes to meet your practical needs. The cut sheets may have to be run through again to make them square. Those squares are then fed into the circle shear, basically a clamp set up with bearings so that it can turn connected to a set of cutting blades set to the radius of the circle size you want.

The method above is suitable for small-scale production and is of low cost. You just turn coil or sheet stocks into circles by using a cut off shear to cut the sheets down to sizes, followed by using a circle shear to cut out the circles.