Articles

Michael Deren, who writes the Machinist's Corner column for Cutting Tool Engineering magazine, explains why he now believes wholeheartedly in lean manufacturing.

Machine tools are big-ticket items, so it's no surprise that they're normally acquired using some sort of financing. In addition to banks, financing can be obtained from machine tool OEMs and nonbank lenders known as finance companies.

Tapping attachments date back to the early 20th century—and they've endured for good reason.n

The Look Ahead department includes a combination broaching and tapping tool for thread forming in the January 2017 issue of Cutting Tool Engineering.

The Look Ahead department covers electro-erosion metal removal with a 5-axis horizontal machining center in the January 2017 issue of Cutting Tool Engineering.

On the one hand, many employers in the manufacturing industry view millennials as being self-absorbed, unfocused, disloyal, addicted to mobile devices and lazy. On the other, most millennials don't view a career in manufacturing as something they want to pursue.

Good optimization software must take into account all the known challenges to optimal machining, which include heat, vibration, deflection, chip buildup, material hardness and a machine tool's horsepower, torque, rigidity, spindle speed, maximum feed rate and accuracy. What's more, end users must also select the appropriate cutting tools and machining parameters.

Where is the field of inspection headed and, more importantly, where do the manufacturers that depend on it desire it to head? In 2014, the Coordinate Metrology Society (CMS) combined forces with the University of North Carolina-Charlotte to find out.

Because through-coolant toolholders eliminate the variances often experienced with external cooling nozzles, the additional cost of such holders, which is sometimes zero, can be easily justified through the reduction of cycle times and improvement of tool life and part quality.

We called them "submarines." Tough, 17-4 PH stainless steel forgings shaped like miniature German U-boats, each requiring several ¼" (6.4mm) through-holes to be drilled at a 25° angle. Each sub was loaded into a jig that held it at the required angle, and a metal plate fitted with hardened steel bushings was then clamped to the top of the jig before the holes were produced with a drill press.

END USER: Mast Motorsports, (936) 560-2218, www.mastmotorsports.com. SOLUTION PROVIDER: Hurco North America, (800) 634-2416, www.hurco.com. CHALLENGE: Replace technologically obsolete production equipment. SOLUTION: Purchase two new 5-axis CNC milling machines

END USER: lllinois Carbide Tool Co. Inc., (800) 323-2414, www.crobaltusa.com, www.brakedrumtool.com. SOLUTION PROVIDER: Agathon Machine Tools Inc., (203) 730-8741, www.agathon.com. CHALLENGE: Keep up with increasing production demands for carbide brake lathe inserts. SOLUTION: A 4-axis grinding machine that enables lights-out production.