Moldmakers are always juggling the various complexities in a mold build. If the mold is relatively flat, the balls (tennis) are relatively easy to juggle. As the mold becomes more complex or deeper, the weight and size of the different balls changes (add a bowling ball and a ping pong ball). At the end of [...]
Major raw material for epoxy resin is reacted from propylene and benzene. The substance is adhesive to other substance, especially metals, and therefore, it can be made into adhesives. Another important feature is that it will not produce volatile substance when being solidified, and hence is of small shrinkage. Endowed with such advantages, it can [...]
A popular practice of moldmakers and injection molders is to coat mold components as an attempt to increase the durability and achieve longer life while reducing maintenance and operational costs. This practice is certainly plausible, as it often falls short of providing the expected results and reduces the potential for maximum cost savings. [...]
Many of today’s shops involved with micro machining are doing so on extremely hard metals, such as CPM (1-V, 3-V, 9-V) D2, A2 and F7 tool steels, along with hard powdered metals, all of which can be as hard, or harder than, 62-64 Rc. They also micro machine stainless steels like 450, 410, and 17-4 [...]