FFI Sustainable manufacturing of future transmission parts SMART

Reference number
Coordinator KUNGLIGA TEKNISKA HÖGSKOLAN - Institutionen för industriell produktion
Funding from Vinnova SEK 9 400 000
Project duration April 2012 - March 2015
Status Completed
Venture FFI - Sustainable production
Call 2011-03731-en
End-of-project report SR_HP_2011-04445_FramTrans_EN.pdf

Purpose and goal

The project would help to develop knowledge-based production in Sweden of advanced products with high customer value. Transmissions are a key component of heavyvehicles and a strong base is in Swedish production. The project aimed to introduce new production technologies and new materials in production. The project has resulted in new knowledge about gear rolling, machining of clean steel for gears, and distorsions from hardening of gears.

Results and expected effects

Gears of size typical for truck transmissions can not yet be manufactured by gear rolling with sufficient accuracy. It is recommended to investigate the introduction of ultra-clean steel from tube products directly in gears. The change would allow a saving in lead time from the steel mill to the manufactured gear. Hardenability dependent geometric compensation in soft machining seems possible to reduce the detrimental effects of distortion.

Approach and implementation

The project has been implemented according to plan with any set milestones achieved.

The project description has been provided by the project members themselves and the text has not been looked at by our editors.

Last updated 9 January 2020

Reference number 2011-04445

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