Injection mold makers everywhere are invariably looking for ways to increase their operations. In any manner it is possible to shorten your delivery date and enhance your quality needs to be seriously investigated.
Jig-grinding is practically always overlooked as a meaningful machine tool for injection mold making. Yet, from my experience, it is a very valuable machine which gets the work done quickly and incredibly accurately.
Why is the jig-grinder overlooked?
It can be overlooked partly since most toolmakers view it being an old machine that's only great for round holes or frustrating contours that should be done over a CNC milling machine. It's true, it isn't quite typical, it can be primarily useful for round holes, plus it does master contours just like you might find inside a gauge for inspection.
This is why this is a secret weapon for creating a plastic mold. Because it is so overlooked, so efficient therefore accurate, you ought to please take a second look with this tool in the not too distant past. Some shops run their jig grinder all day every day, conducting a selection of tasks.
Just how do the jig grinder save me money and time?
The right types of the time consuming tasks it can do well:
Blind hole floors. They are always an irritation to do; either you mill them extra deep before heat treat and grind to match, or perhaps you leave stock for post heat treatment machining. In any event, it is a bother to get the depths correct in a simple manner. With all the jig grinder, you leave them shallow before heat treat, and work with a CBN wheel to very quickly grind the depth perfectly. This is much faster and much easier than hard milling or guessing with the depths when grinding.
Bosses and similar details. Why EDM them when you are able do it in a fraction almost daily?
Adding relief to cores and core pins. You may either make use of a Ded-Tru machine, or even a spin fixture with a surface grinder, or hard turn your cores. Or you can do much of the project on a jig grinder.
Ejector and core pin holes. While virtually all knock out holes are WEDMd today, it is possible to applications if this makes sense to jig grind them.
Pockets, whether round, square or rectangular. It really is unequalled a jig ground pocket. A great application for locators within the core and cavity blocks. This way you're assured of perfect alignment.
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