Virtual Development of a Light Weight Assembled Gear for Automotive Transmissions Neumayer Tekfor Tech Center Brazil

Format:

Conference/Event

Author/Creator:

Souza, Souza, author.

Contributor:

Souza, Mauro Moraes de

Savoy, Juliano

Conference Name:

21st SAE Brasil International Congress and Exhibition (2012-10-02 : Sao Paulo, Brazil)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2012

Summary:

CO₂ emission reduction through weight saving remains a hugechallenge for all automotive components. When it comes to gears,the state of the art shows low potential of weight reduction due tothe trade-off between mass optimization and manufacturing process.Gears are usually forged followed or not by teeth cuttingoperation. Current presses must operate with a minimum distancebetween punch and die, due to the elasticity of the equipment, inorder to avoid tool failure when it operates with no working piece.Also, the press force is determined by this gap, in cases that someflash is formed during forging, and a minimum flash is required fora forgeable part using the available press. This issue constrainsthe minimum wall thickness of a final product, for instance, thebody of an automotive gear. Therefore, some gears designs must havebigger wall thickness than necessary due to this conceptualrestriction, even if thinner walls would be approved by classicalcriteria, such as stiffness, permissible stress and NVH.This work analyzes an innovative solution with flexible designfor gear bodies, where the assembly process eliminates the currentmanufacturing process trade-off

Notes:

Vendor supplied data

Publisher Number:

2012-36-0190

Access Restriction:

Restricted for use by site license