Tech Front
petition sponsored by Japan’s Ministry of Economy, Trade & Industry on July 25. “There’s been a long trend of switching over from hydrau- lic to electrical power actuation in a variety of important in- dustries such as automotive, aerospace, and robotics,” noted Tom Dolan, Mitsui Seiki USA vice president. “As such, lead and feed screw actuators for electrical power steering, fl ight control actuators, and automation systems are in increased demand. Along with these market drivers, highly accurate and effi cient machining methods for various screws, such as ballscrews, have also been on the rise. Typically, thread grind- ers have been made the same way for the last 50 years. This new technology changes everything.”
The new VGE60A is categorized as a “universal” machine because different grinding operations can be performed, according to the company. In addition to thread grinding, the machine can now perform spline, gear, OD, surface, and edge grinding operations in a single setup, which can save
customers signifi cant production time while improving overall part accuracy.
Newly designed features such as an automatic grind- ing wheel changer, automatic wheel guard, and a CNC- controlled wheel dresser (to accommodate various shaped wheels) vastly improve productivity. Infi nitely program- mable grinding wheel tilt angles from +45 to -90º provide increased grinding application opportunities. The vertical orientation of the work enhances overall precision. Elimi- nation of workpiece “sag” is the principal contributor to increased precision. The new vertical confi guration requires 33% less fl oor space than a similar capacity horizontal grinder, and allows for improved human interface with the complete work zone. The VGE60A accommodates a maximum grinding length of 600 mm and an overall shaft size of 80-mm diameter (with the largest diameter wheel) and 700-mm long. The machine is compatible with both oil and water-based coolants.
ROUGHING SUPER ALLOYS JUST GOT FASTER!
is the newest addition to Greenleaf Corporation’s world-
class line of ceramic insert cutting tools. SIALOX™ is made from a SiAlON substrate with a proprietary coating and exhibits excellent thermal shock resistance making it ideal for use in interrupted cuts, scale and milling.
Characteristics of SIALOX™ include high wear resistance, fracture toughness, corrosion resistance, low thermal expansion and oxidation resistance. This results in a ceramic cutting tool that can perform in a variety of materials and take the abuse related to machining rough forgings and castings of high-strength alloy materials.
Greenleaf Corporation is ISO 9001 Certified.
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