Designed to ease punch and die maintenance, Mate’s ValuGrind high-precision grinder enables fabricators to regrind punches and dies to optimum condition for high-quality parts production. The completely fixtured grinder is available for either thick-turret or Trumpf-style tooling.
The machine features a 165-mm-diameter diamond grinding wheel for finishing operations. An inner wheel-cooling system places coolant directly where needed, reducing excessive heat build-up that can damage the tooling, the company says. A 1,050-W, 4,050-rpm motor delivers high speed, precise surface finish, the company says. To avoid over-grinding, depth control can be set in 0.02-mm increments. Also, a compact, portable tabletop (820 × 520 × 675 mm) is designed for limited space.
The grinder accommodates the company’s thick-turret tooling styles, including Original; AMX; MT; MTG; MTG Long; MXC; Ultra; and all A- through E-station sizes, as well as common thick-turret tooling of equivalent sizes. The grinder also accommodates all Size 1 and Size 2 Trumpf-style tooling products, including Next, QuickLock and Multi Tool tooling, as well as common Trumpf-style tooling of equivalent sizes.
Because of the high material removal rate creep-feed grinding can deliver in challenging materials, grinding might not be just the last step in the process—it might be the process.
It sounds like a contradiction in terms-between centers and centerless grinding on one machine. But for some categories of workpieces, it's a viable production process that can yield machining time reductions of 45 percent over separate grinding operations.
Two enabling technologies -- superabrasive wheels and high precision servo control -- come together to provide a contour grinding process that resembles an OD turning operation. For many medium volume OD grinding applications, this method may be a means to consolidate several manufacturing steps into a single setup.