Posted by: Stephanie Hendrixson 24. February 2017
Trade shows consistently rank highly as a method for discovering new products and researching purchasing decisions in the annual Media Usage survey conducted by Gardner Business Media (publisher of Modern Machine Shop). For attendees in any stage of the buying cycle, trade shows offer the chance to speak with suppliers in person, ask questions and see the equipment up close. At some shows, like the upcoming Precision Machining Technology Show (PMTS), visitors may also get a chance to see that equipment in use.
Taking place April 25-27 at the Greater Columbus Convention Center (Columbus, Ohio), PMTS 2017 will offer eight show-floor demonstrations. Interested attendees can see equipment in action and ask questions of presenters and the other experts available.
The use of solid ceramic end mills is on the rise, says Thilo Mueller, manager of solid end milling tools with Kennametal. And in a way, that news is less dramatic than it might sound, because solid ceramic end mills are arguably easier to use than carbide ones. Shops applying them need not make special process changes. Contrary to what is often assumed about ceramic tooling, these end mills do not require runout any better than what is used for comparable carbide tools. And because the tools perform effectively when machining dry, considerations related to coolant become irrelevant.
All the tools really need is speed, he says. They employ heat as part of their cutting mechanism—the heat that comes from fast, dry cutting, the same heat that might be destructive to other tools. The best performance with a ceramic end mill generally occurs in a dry machining application in the range of 3,000 to 4,000 sfm.
Posted by: Jedd Cole 22. February 2017
Posted by: Derek Korn 21. February 2017
Current trends in machine-tending robot technology include collaborative robotics, in which a human can safely work near a robot without conventional fencing; easier deployment of robots to different machine tools when necessary; and simplified programming.
The Robo2Go machine-tending system from DMG MORI Systems leverages technologies that address each of these trends. It is particularly well-suited for shops that run a variety of different jobs, but would like to reap the benefits of unattended or lights-out machining on its DMG MORI turning centers that feature the company’s CELOS control.
Posted by: Stephanie Hendrixson 20. February 2017
One pitfall in implementing metal additive manufacturing is to think of metal AM in terms of CNC machining. Doing so can set unreasonable expectations in terms of productivity. Even more dangerous, however, is to treat AM equipment like CNC machine tools in terms of safety.
“Believe it or not, companies are not being safe,” explains Ed Tackett, director of educational programs at UL's Additive Manufacturing Competency Center (AMCC). The UL AMCC takes a safety-first approach to all aspects of metal additive manufacturing, teaching students how to identify risks—material behavior, health risks, waste management—and then mitigate those risks. Read the full story in the February issue of Additive Manufacturing magazine, beginning on page 26.