Hybrid drive shaft using friction-stir welding and fabrication method thereof

By forming a composite material layer inside the metal tube and using friction stir welding technology to combine with the metal yoke, the problem of drive shaft vibration resonance and joint interface is solved, lightweight and durability are improved, and energy consumption and the risk of joint interface defects are reduced.

Active Publication Date: 2015-10-21
WOO SHIN EMC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, when manufacturing according to the above-mentioned method, it is necessary to form the opposing parts of the adjacent members for joining into a trapezoidal shape, so the cost is high, and the cost will be increased when manufacturing into other shapes.

Method used

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Examples

Experimental program
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Embodiment Construction

[0049] The purpose, features, and advantages of the present invention will be clarified by the following detailed description. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0050] Figure 2 to Figure 4 A preferred embodiment according to the invention is shown.

[0051] refer to figure 2 , shows the finished product of the drive shaft according to the invention. The drive shaft 100 is composed of a metal tube 110 , metal yokes 130 assembled at both ends of the metal tube, and an inner composite material layer 120 . Aluminum is used for the metal pipe 110, and aluminum is also used for the metal yoke 130. Besides, other metals, or aluminum alloys can also be used. This alloy may contain nickel or magnesium. The yoke 130 is formed with a stepped portion, so that a part is inserted into the metal pipe, and the two joint surfaces are inclined to face each other, and the height of the ou...

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Abstract

The present invention relates to a hybrid drive shaft using friction-stir welding and a fabrication method thereof, and more particularly to a drive shaft comprising a metal tube, a composite material layer formed inside the metal tube, and a metal yoke connected to both ends of the drive shaft by means of friction-stir welding so as to make the components simple and lightweight and to enhance the durability, and a fabrication method thereof. The fabrication method comprises the steps of: shaping a composite material sheet into a cylindrical form by means of a mandrel; adhering the cylindrical composite material layer to the inside of a metal tube by rotating the mandrel snugly inserted in the composite material cylinder; maintaining the inside of the metal tube in a vacuum state for a given duration so as to make the composite material layer stick to the metal tube; heating the metal tube maintained in the vacuum state in an autoclave so as to mold the composite material; and adjoining a connection member for connecting other parts to the ends of the metal tube by friction-stir welding.

Description

technical field [0001] The present invention relates to a drive shaft, and in more detail, relates to forming a drive shaft by forming a composite material layer inside a metal pipe, and joining metal yokes at both ends of the drive shaft by friction stir welding, thereby reducing fittings, A driving shaft using friction stir welding that reduces noise and vibration to enhance durability and save energy, and a manufacturing method thereof. Background technique [0002] Generally, a vehicle that drives the rear wheels transmits driving force generated from a front engine to the rear wheels through a drive shaft connected to a transmission to move the vehicle forward. Although the engine and transmission are installed at the front, they do not drive the front wheels but drive the rear wheels to move forward. Since the rear-wheel drive vehicle turns the rear wheels to the front wheels, it has an excellent steering function compared with the front-wheel drive vehicle, and can e...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B23K20/12
CPCB23K20/122B23K2201/04B23K2101/04F16C2326/06F16C3/023F16C3/026B23K20/12B23K20/129B23K20/24B29C70/34B29L2031/75B29K2105/256
OwnerWOO SHIN EMC