Video: Blisk Milling
The process seen here uses trochoidal tool paths and cryogenic cooling
Machine tool supplier MAG-IAS produced this video to illustrate an efficient approach to titanium blisk production. This process makes use of trochoidal milling, using a continually curving tool path to preserve tool life by keeping the stress on the tool consistent. MAG's cryogenic machining further extends tool life by delivering liquid nitrogen through the tool. (You can see the nitrogen leave the tool as a gas at various points in this video.) The five-axis machining center seen here is the company's NBV 700 5X model.
Finally there is an alternative to ballnose endmills for finishing 3D parts. The combination of finishing tools shaped to provide more cutting surface and a CAM system with the ability to apply them on a five-axis machining center can dramatically reduce finishing cycle times while delivering better surface finishes.
Different tools and machining strategies have driven this shop to seek new efficiencies beyond its most demanding work and most capable machining center.
All around the world, companies that machine molds and dies face numerous challenges as well as numerous opportunities. How these companies are responding are influencing the entire metalworking industry.