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Interesting Fact: Some of the largest punch presses in the world are those built by the Heavy Press Program run by the U.S. government in the 1950s. These monsters weigh 16 million pounds and can punch with a force of 50,000 tons.
Interesting Fact: Most commercial punch presses operate in a range between 100-500 kN (10.2-50.9 tons).
What is a turret punch press?
A turret punch press is a machine that is designed with the ability to use a variety of different punch tools. They typically use a number of round, straight, or mounting holes. The benefit of this is that one machine can complete many different tasks that would normally require a custom built machine. Using a custom built machine can be great when manufacturing large quantities that will offset the cost, but there are challenges when trying to build things such as prototypes or producing low volume products.
How does the turret work in a punch press?
The turret is the part on the press that holds all of the different punches. It's this part that makes the use of multiple punches possible by replacing the traditional single punch parts.
Why do punch presses break down?
Like any machine with lots of moving parts, there are many reasons that can cause punch presses to break down. One of the most common issues is press deflection. In a nutshell, this is where the press looses accuracy which can cause the press to break down. Die breakage is another very common issue that happens regularly. This can be caused by poor maintenance, old or worn dies, or not being installed properly. Operator error is also another very common issue. Improper care and even misuse are common reasons operators can cause breakdowns. Most of these issues can be avoided with a little bit of extra time, effort, and training.
How are turret punch disks repaired?
There are a couple of options for turret disk repair. The first option is traditional replacement. While this option puts a brand new part in the press, it does have some challenges with it. The biggest issue is simply the high cost. Having a disk replaced can be very expensive which is a problem for any business. Adding to the high cost is that disk replacement can create a long down time which robs valuable production time. There is another option available called sleeving which can be a more affordable and a quicker fix than replacement.
What is turret sleeving?
Turret sleeving is the process where the worn out station is bored out. Then a hardened steel sleeve is inserted that returns them to their originally tolerance. One major benefit of this system is that the sleeve is able to be replaced at a much lower cost. Another great advantage is that the repairs are able to be done on-site and in a much quicker time frame than traditional repairs.
Repairing vs replacing turret disks?
The biggest advantage of sleeving is the lower cost and quicker repair time. This makes it a strong alternative to traditional replacement. Sleeving also has a couple other major benefits such as being able to perform the repairs on-site and that the sleeve is easily replaceable making future repairs far cheaper. The only reason to look at traditional replacement is if the press isn't able to be repaired with sleeving.