you can adjust the diameter of the insert on the cutting end of the boring bar and its stroke, you can do deep pocket work. About half of my customers have gone to the contouring head configuration for oil field work for large parts that don’t lend themselves to being put on a lathe,” said Yeakley. SB Machine offers three Nomura boring mill types with 4 and 5" (110 and 135-mm) quills with table pallets ranging from 45 × 45" (1143 × 1143 mm) for the 4" HBA 110T-R2 model to 72 × 78" (1829 × 1981 mm) for the 5" HBA 135 P-R5 model.
“The large parts we are aiming for require about 90% milling and 10%
contouring, and the boring mill platform gives us unmatched metal-removal muscle.”
“One of the most exciting new things that I’m working on is a specialized machine called the FBA which has a built-in facing head for machining large valves for drilling, milling, and internal facing. Instead of using a contour head, a built-in facing head with a toolchang- ing capability is used. The FBA is being tested on turning large-diameter pipe up to 60" [1524 mm] for applications where it would be used as pilings, such as north slope applications,” said Yeakley.
Big Gear Sets Machined on Multitasking Centers
“Many shops increasingly incorpo- rate full five-axis multitasking machine tool technology because it allows them to handle basically any kind of part that comes through the door and do so with one type of machine in single setups to increase productivity. But rarely, if
ever, do these shops realize that large, spiral-bevel gear sets are among that wide mix of part-processing capability,” said Mike Finn, process development engineer at Mazak Corp. (Florence, KY).
I am Accuprofi table.
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mscdirect.com/accupro 800.645.7270
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December 2013 |
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