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Metal Pressings: Fine Blanking vs. Stamping

So you want your metal shaped, stamped, or cut…how do you go about it? The old fashioned way would be manually cut it up and file it down to shape. Whilst this is still an option, it is not really a viable one for parts that need to have exact dimensions, and certainly not for mass production.

When it comes down to metal pressings, there are two main processes that take precedent: fine blanking and stamping. Each method will depend on cost, material and size, and each has their own merits.

Fine Blanking

Fine blanking metal pressings are limited in material. If you want to use the fine blanking process, that you are limited to aluminium, brass, copper, and alloy, carbon, and stainless steels. This still gives you a wide range to work with, but if you require a different metal then this is not the process for you.

Fine blanking is similar to other metal pressings, but it does of course have a few differences. A typical fine blanking press will include a hardened die punch (known as the male), a hardened blanking die (known as the female), and a guide plate which is of a similar shape and size to the blanking die. This method is often argued to be more like an extrusion than a typical punching.

Stamping

Stamping metal pressings can be made by either mechanically or hydraulically driven presses. Mechanical presses can reach higher cycles over a certain time period, and thus are usually more common in industrial press shops. Whilst mechanical driven presses can only deliver full force at the bottom of the stroke, hydraulic driven presses can deliver full force wherever you want them to.

Which One is the Best?

Whilst both of these metal pressings methods pretty much deliver the same outcome, you should consider which one is best for you. Obviously the first step is to know which material you need to use. You will also need to consider how many of these metal pressings you need, and how you want them made.

Feel free to give a list of your requirements to our team of staff at Fine Blanking Group, and we will be able to tell you which method will work the most effectively. We will sit down with you and discuss the benefits of each method, as well as any detriments that might accompany them.

 

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