Grinding (Surface, Cylindrical, Tool & Cutter)

Solid, dependable and engineered to meet increasing machine shop demands, characterize the new line of JET 8, 10 and 12 in. industrial bench grinders. These powerful, hard-working benchtop machines with 1 hp, 1-1/2 hp and 2 hp heavy duty capacitor motors, are smooth operators, anchored with cast iron bases for rigidity and minimial vibration.

TechMet Carbides Inc. says its Flute-Tech diamond grinding wheels have a universal hybrid bond system that performs better than polyimide bond systems at a similar price point. The diamond wheels are easy to true and dress on conventional truing equipment and are suitable for use with all spindle powers.

Italy-based Samputensili S.p.A. unveiled a machine that eliminates the need for cutting oils when manufacturing gears, thereby reducing grinding costs. During grinding, oil-based lubricants cool the workpiece, as well as reduce friction and help evacuate chips. On the downside, however, oil use accounts for a significant amount of a grinding operation's total cost. Expensive equipment is required to supply, chill, catch and wash away oil in grinding processes. In addition, Samputensili estimates that oil-treatment equipment accounts for 75 percent of the energy consumed by a grinding machine.

Ask the Grinding Doc: When I ran out of single-point dressing diamonds and got desperate, I mounted a PCD insert to dress an Al2O3 wheel. Is there any danger in doing that?

GF Machining Solutions, Lincolnshire, Ill., today announced the expansion of its line of laser texturing solutions with the LASER P 400 3-axis machine and LASER P 400U 5-axis machines. The machines provide easy, repeatable laser engraving texturing and structuring for small parts, such as for watches, jewelry, cutting tools, small inserts and micromachined workpieces, according to the company.

The drebojet®-plus, a new diamond dressing roll from Lach Diamond Inc, Grand Rapids, Mich., will make its debut at GrindTec, which is set for March 16-19 in Augsburg, Germany, according to a company news release issued today. The drebojet-plus is intended for contour-controlled dressing and profiling of grinding wheels.

AGATHON Machine Tools Inc. has introduced the new Leo Peri 4-axis grinding center for grinding the periphery of indexable inserts. Throughout product development, the Leo Peri design concept focused on achieving a smaller machine size, incorporating greater user friendly accessibility, maintenance free concepts, and overall superior machine strength enabling high process performance to meet both high production and peak quality standards for carbide, cermet, ceramics and PCBN applications.

A shop asks Dr. Jeffrey Badger, Cutting Tool Engineering magazine's "Ask the Grinding Doc" columnist, whether it's better to take several small, fast passes versus one large, slow pass when pinch-peel grinding tungsten-carbide shafts. Visit The Grinding Doc website for more advice from Dr. Jeffrey Badger at http://www.thegrindingdoc.com.

Rollomatic Inc., Mundelein, Ill., recently promoted William "Mac" McKenna to regional sales manager for several key manufacturing areas in North America, according to a Rollomatic Inc. news release issued this month. Rollomatic builds CNC tool/cutter and peel grinding machines, as well as laser cutting machines.

A shop creep-feed grinding hardened steel using a water-based coolant kept running into trouble after grinding for a few hours. Everything would be grinding along fine, but then—WHAM—really bad burn would bring the job to a halt. And the burn wouldn't go away until the shop dressed the wheel again. Dr. Jeffrey Badger, the host of Cutting Tool Engineering's Grinding Doc Video Series, provides some insight and a solution in the 65th episode of the video series.

Samputensili offers a ground-breaking concept that totally eliminates the need for cutting oils during the grinding of gears after heat treatment. The new machine, which is called SG 160 SKY GRIND, features two spindles: one for skive hobbing and one for generating grinding.

Meister Abrasives USA Inc. in December 2015 added an advanced CNC manufacturing system to its lineup, making it possible for the North Kingstown, R.I., company to manufacture large diameter external wheels in the United States using equipment, materials and a manufacturing process identical to those used by its parent corporation in Switzerland. The new CNC system is said to be capable of producing large vit CBN and diamond abrasive wheels up to 1,225mm (about 4') in diameter.