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Articles About Samp
In this Gear Profile article, we interview Antonio Maccaferri, president of SAMP S.p.A.
The latest machines, tooling and technology for gear grinding were featured at IMTS 2012.
Whether you spent time at Gear Expo in Indianapolis or EMO in Hannover, there was certainly new technology attracting attention. Machine tools are faster, more efficient and can integrate numerous functions in a single setup. Grinding technology is turning science upside down and inside out with high-speed removal rates and increased throughput.
The curved tooth cylindrical gear is one of ancient design. Samples which date from the period of the Warring State (475-221 BC) have been excavated from archeological sites in China. One such sample is now on display in the Xi'an Clay figures of Warriors and Horses Exhibition Hall. This example is about 3/4" in diameter and made of bronze. It was used in the famous model, "Ancient Chinese Vehicle With a Wooden Figure Always Pointing to the South." Although this early gear is handmade and somewhat crude, it is a viable model.
A sampling of newsletter articles and videos related to gear manufacturing from March/April 2013.
After a period of operation, high-speed turbo gears may exhibit a change in longitudinal tooth contact pattern, reducing full face width contact and thereby increasing risk of tooth distress due to the decreased loaded area of the teeth. But this can be tricky—the phenomenon may or may not occur. Or, in some units the shift is more severe than others, with documented cases in which shifting occurred after as little as 16,000 hours of operation. In other cases, there is no evidence of any change for units in operation for more than 170,000 hours. This condition exists primarily in helical gears. All recorded observations here have been with case-carburized and ground gear sets. This presentation describes phenomena observed in a limited sampling of the countless high-speed gear units in field operation. While the authors found no existing literature describing this behavior, further investigation suggests a possible cause. Left unchecked and without corrective action, this occurrence may result in tooth breakage.
In recent years, gear inspection requirements have changed considerably, but inspection methods have barely kept pace. The gap is especially noticeable in bevel gears, whose geometry has always made testing them a complicated, expensive and time-consuming process. Present roll test methods for determining flank form and quality of gear sets are hardly applicable to bevel gears at all, and the time, expense and sophistication required for coordinate measurement has limited its use to gear development, with only sampling occurring during production.
News Items About Samp
1 Samputensil Introduces High Capacity Grinding Machine (January 6, 2006)
The new 250G generating grinding machine from Samputensili, introduced at EMO 2005 was developed to achieve a shorter cycle time. Acco... Read News
2 Samputensili and Shanghai Tool Works Join Forces (April 16, 2005)
Antonio Maccaferri, president of Samputensili S.p.A. and Yang Jinchang, president of Shanghai Tool Works Co. Ltd. announced a joint ven... Read News
3 Samputensili Master Gears Personalized to Customer or DIN Specifications (April 12, 2006)
Samputensili has introduced a range of master gears to determine work gear accuracy and setting masters to adjust checking equipment. ... Read News
4 Samputensili Invests 4.7 Million Euros in Ennvironmentaly Friendly Manufacturing Facility (March 9, 2007)
Samputensili S.p.A. announced an investment of 4.7 million euros for the building of a new manufacturing facility of Ortona (Chieti, Ital... Read News
5 MAG Acquiring Samputensili Gear Hobbing Line (October 11, 2010)
MAG, a manufacturing technology company, has acquired the gear hobbing and chamfering/deburring product line of Samputensili GmbH in Chem... Read News
6 Global restructuring of SAMP manufacturing locations (February 1, 2010)
Star SU partner SAMP S.p.a announced that it will consolidate, restructure and relocate its Chemnitz, Germany and Ortona, Italy manufactu... Read News