Horizontal Machining for Small Part Aerospace Manufacturing on the a51nx





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Published on Mar 16, 2012

Aluminum machining witnessed in this video demonstrates the small part aerospace manufacturing capabilities of the Makino a51nx 400mm high-speed horizontal machining center.

The arrowhead part starts as an A5052 aluminum billet measuring 7.9" X 5.1" X 5.3". The block is prepped with a dovetail and machined complete in a single workholding using a Techni-grip fixture. The a51nx is configured with a 14,000 rpm 40HP/302Nm integral drive spindle, HSK63 spindle interface and standard direct-drive B-axis. For ideal visibility of the cutting, the machine is also configured with a MQL (minimum quantity lubrication) system.

The Makino aluminum machining strategy is to maximize the average metal removal rate (MRR). This puts the high-performance aluminum machining focus on both roughing and finishing applications. In the case of the arrowhead part, total cycle time is 10.4 minutes. Average MRR for this part is an impressive 18.3 cubic inches per minute. Key operations contributing to this result are:
• high-performance, heavy hogging -- 25mm (3) flute end mill with peak MRR rates of 106 cubic inches per minute.
• one-shot wall finishing -- 20mm (3) flute end mill with axial engagement of up to 3.5" for finishing part walls in a single pass.

For more information on the Makino a51nx horizontal machining center, aerospace manufacturing and aluminum machining, please visit http://bit.ly/w35sXW .

This video is property of Makino.


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