In sheet metal, this question always create some confusion. What is difference between punching blanking and piercing ? Punching blanking and piercing are sheet metal shearing operations to modify existing blank. Same machines can be used to perform these operations. In this article, we will discuss how blanking punching and piercing operations are different from one another.
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As explained above, punching operation removes scrap from the larger piece of sheet metal. It is a metal removal operation. As a result of punching, larger piece of sheet metal becomes final product.
In another words, Combination of punching operations modify existing blank/sheet using metal removing operations.
To sum up, Punching blanking and piercing are sheet metal shearing operations to modify existing blank. Same machines but different tools are used to perform these operations. You can learn more about sheet metal cutting operations here.
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