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Sheet metal scratches can provide a costly and unwanted issues during your manufacturing process.

Scratches can increase wastage, delay in the time it takes to get a product to market and incur additional costs which may not have been budgeted or prepared for. Costs and inconvenience increase exponentially the further into the process that they are discovered, so it’s important to take the necessary steps to prevent scratching regularly to avoid disruption.

Depending on the process being undertaken and what is being produced, different processes are vulnerable to different types of scratching and it’s vital to be aware of the risks surrounding each situation, so that you can put the correct things in place to help reduce or eliminate them.

Friction scratching can occur during the fabrication process, particularly when there is the formation of a built-up edge. A built-up edge occurs when working with metals such as low carbon steel, stainless steel and aluminium. When this happens, the plate can get damaged, which can in turn can cause friction scratching as it’s dragged across the mould.

To avoid friction scratching, it’s important to regularly clean both the sheet metal that you’re working with and the worktable to ensure there is no debris to contribute to this potential problem. Additionally, you can also lower the punching speed to reduce the built-up edge.

When bending metal, abrasion marks and scratches can be caused by the punch as it moves across the surface. One solution to this problem is to use a die-covering material strip, which can be laid over the top of the die to separate the part from the machine during the bending process.

Additionally, there are many forms of anti-scratch mould available which can help reduce the risks or marking significantly, and help you avoid issues associated with sheet metal scratching.

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