Femoral head made out of chrome cobalt. Starrag's approach to this challenge is to start with a plain bar and finish the femoral head in one single set-up.
The Bumotec s191FTLR is able to perform six-sided machining - including the grinding of the spheric shape (sphericity 2.5 µm) and polishing operation (roughness RA 0.05) with precision and accuracy without interruption of the cycle.
The Starrag Bumotec s191FTLR 7-axis turn mill is specifically engineered for manufacturing complex parts in a single set-up, as well as for producing parts in the micro-mechanics, aerospace, medtech or luxury goods sectors. "In the medical field, which in particular requires high levels of precision and repeatability, our technology is often used to obtain a cost-effective solution for producing implants combining grinding, milling, turning, drilling and polishing processes without interruption," said a company spokesperson.
The requirement to manufacture complex micro sized parts is in high demand - particularly hard materials used in medtech industry. One such example is the femoral head made out of chrome cobalt. "Our approach to this manufacturing challenge is to start with a plain bar and finish the femoral head in one single set-up," said the spokesperson. The Bumotec s191FTLR machine model (turning, milling, linear motor, retaking) is able to perform six-sided machining - including the grinding of the spheric shape (sphericity 2.5 µm)-with precision and accurate polishing operation (roughness RA 0.05) without interruption of the cycle, which requires about 12 minutes to complete. Once the bar is loaded, the machine takes little supervision. The requirement to produce a precise femoral head is accomplished by using the machine's dynamic correction capabilities and Renishaw's contactless part probing techniques.
With its uniquely designed full size sub-spindle, the FANUC linear motor driven Bumotec s-191FTLR is able to turn, mill, grind, surface finish and 5-axis machine a medical femoral head, from high-mix small-batches to large-volume serial production.
The advantage of machining such complex shapes in a single cycle is realized through: quick changeover, higher productivity, lower cycle times, less floor space and the sharp reduction in part handling. "These benefits yield a more accurate and reproducible part at a lower manufacturing cost than traditional machining methods requiring numerous set ups over various machines. With all the capabilities of the Bumotec s-191FTLR and Starrag's innovative engineering staff, we have solutions to precisely fit our customers' needs," said the spokesperson.
For more information contact:
Starrag USA Inc.
North American Headquarters
Skyport Business Park
2379 Progress Drive
Hebron, KY 41048
859-534-5201
ussales@starrag.com
www.starrag.com