the pallet fi xturing and the machine fi nish-cuts the gear’s bore as well as hard mills the fl anks and edge radii of its teeth to eliminate any secondary deburring operations. The ring gear is refi xtured and fi nish-machined in the same way.
“It is this production fl exibility that attracts shops to multitasking machines.”
“Of all the challenges involved with machining gear sets, imparting the correct involute form on the pinion gear is the most daunting, and in machining, Mazak uses several proprietary techniques to minimize close out error,” said Finn. In doing so, the company is able to determine the minimal amount of stock to leave on the pinion gear to correct for warping from the heat-treating process, yet also leave enough stock to fulfi ll the case hardened depth requirement. Remov- ing too much material during the fi nish-machining operation
can compromise the gear’s case hardened depth, thus affect- ing the gear’s operation and its working life.
Largest Parts Can Pose Special Challenges
The demands placed on the largest machines to meet the increasingly diffi cult processing requirements for accuracy and productivity are typical of machining large workpieces for the power generation industry. Workpieces like rotors for power generators can be massive, weighing in at the raw stage to as much as 32 t, requiring special machines to produce grooves using HSS side-milling cutters. This was an extremely time-consuming process, because tool penetra- tion depths were limited to only a few millimeters. Processing times of 200–300 hours with another 40 hours required for deburring were not uncommon.
The mpmc 1200 multiproduct machining center from
Weingärtner Maschinenbau (Kirchham, Austria) was able to slash processing time to produce the slots on generator rotors.
Machining
Complex Turn-Key Applications Start and Finish with Sugino
Looking for one supplier to provide full turn-key solutions for your most complex part applications? Sugino has the answer.
Our diverse lineup of machining equipment, water jets, precision finishing tools and high-pressure washing & deburring systems are available to meet your individual needs. Learn more at
SuginoCorp.com, or call for further details.
Drilling & Tapping
Burnishing
Washing & Deburring
MACHINING ¦ WASHING ¦ WATER JET ¦ TOOLING SUPER TECHNOLOGY
SuginoCorp.com 630-626-0518
December 2013 |
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