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Articles About repair
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The objective of this paper is to demonstrate that transmission gears of rotary-wing aircraft, which are typically scrapped due to minor foreign object damage (FOD) and grey staining, can be repaired and re-used with signifi cant cost avoidance. The isotropic superfinishing (ISF) process is used to repair the gear by removing surface damage. It has been demonstrated in this project that this surface damage can be removed while maintaining OEM specifications on gear size, geometry and metallurgy. Further, scrap CH-46 mix box spur pinions, repaired by the ISF process, were subjected to gear tooth strength and durability testing, and their performance compared with or exceeded that of new spur pinions procured from an approved Navy vendor. This clearly demonstrates the feasibility of the repair and re-use of precision transmission gears.
Following is a report on the R&D findings regarding remediation of high-value, high-demand spiral bevel gears for the UH–60 helicopter tail rotor drivetrain. As spiral bevel gears for the UH–60 helicopter are in generally High-Demand due to the needs of new aircraft production and the overhaul and repair of aircraft returning from service, acquisition of new spiral bevel gears in support of R&D activities is very challenging. To compensate, an assessment was done of a then-emerging superfinishing method—i.e., the micromachining process (MPP)—as a potential repair technique for spiral bevel gears, as well as a way to enhance their performance and durability. The results are described in this paper.
Gearing for Munchkins Gene Kasten, president of Repair Parts, Inc., of Rockford, IL, is the proud owner of a miniature Barber-Colman hobber, the only one of its kind in the world. The machine, a replica of the old B-C "A" machine, was built between 1933 and 1941 by W. W. Dickover, who devoted 2, 640 hours of his spare time to the project.
Much has happened since we last reported on the malfunctioning solar array rotary joint (SARJ) attached to the International Space Station. Space shuttle Endeavour dropped in for a two-week visit in November during which repairs were made and invaluable data collected.
Historically, wind turbine gearbox failures have plagued the industry. Yet an effective oil analysis program will increase the reliability and availability of your machinery, while minimizing maintenance costs associated with oil change-outs, labor, repairs and downtime. Practical action steps are presented here to improve reliability.
The wind turbine industry has been plagued with gearbox failures, which cause repair costs, legal expenses, lost energy production and environmental pollution.
It’s happened to most manufacturers at one point or another. A defective product comes back from a customer in need of repair. Perhaps a bearing or a gear drive has failed, and the customer simply needs a replacement. Upon further examination, the company realizes it was never one of its products in the first place, but a fabricated copy that snuck into the market. The manufacturing community has been dealing with counterfeit products for decades, but used machinery dealers and Internet shoppers seem to continuously get hit by scam artists.
News Items About repair
1 GTI Spindle Launches Fourth Repair Facility at Caterpillar Plant (April 30, 2006)
GTI Spindle Technology launched a state-of-the-art spindle repair facility onsite at Caterpillar Fuel Systems in Pontiac, IL. Accordi... Read News
2 Riten Industries Now Capable of Repairing and Remanufacturing Tailstocks for Lathes and Grinders (July 23, 2015)
Riten Industries recently announced the capability to repair and remanufacture tailstocks for lathes and grinders from all manufacturers.... Read News
3 Timken Expands Service Center in Washington to Deliver More Repair Capabilities (October 28, 2015)
The Timken Company recently opened a 70,000-square-foot, motor and gearbox repair facility adjacent to its existing service center in Pas... Read News
4 Excel Gear Forms New Retrofit Division for Repairs and Upgrades of Old Machinery (July 9, 2015)
Excel Gear recently formed a new division of their company, Excel CNC Retrofit LLC, devoted to upgrading and remanufacturing older gear m... Read News
5 Bourn & Koch Legacy Machine Tools Can be Remanufactured, Retrofitted or Repaired (May 9, 2016)
Over the last four decades, through numerous acquisitions Bourn & Koch, Inc. has become the Original Equipment Manufacturer (OEM) for... Read News