VMC Machines Hardened Steel Molds
Amerimold 2017: JTEKT Toyoda Americas will demonstrate its Stealth 965 vertical machining center running a mold in hardened steel.
JTEKT Toyoda Americas will demonstrate its Stealth 965 vertical machining center running a mold in hardened steel. Featuring a 900-mm (35.4") X axis, a 1,110 × 650 mm (43.3" × 25.6") table and a 900-kg (1,985-lb) load capacity, the boxway VMC is engineered to handle a range of challenging materials. Four hardened and ground Y-axis box guideways are integral to the single-piece casting, and are mated to a super-wide, inverted Y-shaped column. All metal-to-metal contact surfaces are hand-scraped for additional rigidity. This results in a better surface finish due to its extreme vibration dampening characteristics, the company says. A 200-block look-ahead prepares an optimal route for tooling while maintaining constant machining speed, resulting in a high-quality surface finish through curves and corners.
Standard features include a temperature-controlled, 30-hp, direct-drive, 12,000-rpm spindle. Large precision spindle bearings provide high revolution accuracy, thermal stability and extended tool life.
While aluminum molds are commonly used to create prototypes or to serve as stopgap bridge tooling, they are starting to receive greater attention for production work. This shop’s approach to creating aluminum molds in one day to three weeks is the same for each of these situations.
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