Burr Direction In Sheet Metal

Steps to design any sheet metal stamping press tool or die.

Burr direction in sheet metal.

Using burr free design such as. It is usually an unwanted piece of material and is removed with a deburring tool in a process called deburring. They include burrs fracture burnishing rollover and work hardening. Figure 1 the sheared edge exhibits some distinctive characteristics.

To the edges where burrs may occur to reduce the occurrence of burrs. These combined costs are compared to sheet metal prices for an anticipated cost savings. Burr direction side of the stock on which burrs appear. For elevator stainless steel sheet metal parts the product design department considers the burr formation mechanism and removal method at the product and process design stage to minimize burrs.

But as a side product of many manufacturing methods it is often unavoidable. The sheet metal stamping process is a very fast and precise manufacturing process. So it is very important to design an economy friendly and time saving press tools. Attaining a burr free cut is about ensuring the beam parameters and gas dynamics work together to ensure the right amount of molten metal evacuates the kerf at the right time and in the right way.

The metal stamping quote will include the cost for the tooling tool die set to produce the parts and also the part cost. More ductile metals tend to form larger burrs. But what if press tool is not working efficiently or it takes many more operations to produce stamped parts. De burring can be avoided by considering the direction of the burrs in the design of the parts.

Figure 3 a microcrack that occurred during. If operators and technicians try to solve cut quality problems without considering the process fundamentals they may be shooting in the dark. Which manufacturing methods leave a burr. Stamping includes a variety of sheet metal forming manufacturing processes using a machine.

2 workpiece resulting from blanking operation. Burr height up to 10 of material thickness can be expected. The burr is a thin ridge of material that is formed due to the elongation of metal during the final separation of the sheet. Burrs can interfere with subsequent forming processes.

Clearly the formation of burr should be avoided whenever possible. Figure 2 a burr or protruding ragged edge shown at 100x magnification occurs as the material is sheared at an angle against the blanking direction. In manufacturing practice sharp tools can mitigate burrs. See also drawing and forming blank 1 sheet metal stock from which a product is to be made.

Burr commonly occurs when producing sheet metal parts using different manufacturing methods. In those instances deburring is necessary. Metal stamping is utilized for cost effiency when a sheet metal requirement has a significant quantity range.