The utility model discloses a friction welding welding tool, which includes a shaft shoulder and a stirring needle. The mixing needle is located at the lower end of the shaft shoulder; the lower end of the shaft shoulder is also provided with a groove around the stirring needle. The lower end face of the shaft shoulder is vertically perpendicular to the shaft shoulder, and the lower end face and the welding state are in the welding state. Contact of the upper surface of the parent material. The utility model provides a friction stir welding welding tool. In the condition of welding, the bottom wall of the groove, the circumferential wall and the upper surface of the welded material can be enclosed to form a closed chamber. The plastic material produced by the stirring needle can be entered into the chamber to prevent spillover, so that the shape of the flirt can be avoided to a large extent. It is beneficial to ensure the quality of the weld, and the lower end face of the shaft shoulder is a plane perpendicular to the axis of the shaft shoulder. In the front of the welding tool, the lower end face can press and smooth the plastic material in the spoon hole to ensure the smoothness and the integrity of the weld surface, and further improve the quality of the weld.
【技术实现步骤摘要】
一种搅拌摩擦焊的焊具
本技术涉及搅拌摩擦焊
,尤其涉及一种搅拌摩擦焊的焊具。
技术介绍
搅拌摩擦焊的基本原理是,利用高速旋转的搅拌摩擦焊焊具对待焊接母材实施摩擦热及搅拌切削作用,使得待焊接母材发生热塑性变形,并在焊具的旋转、挤压、锻造作用下完成焊缝成形。搅拌摩擦焊的焊具通常包括轴肩和搅拌针,搅拌针设于轴肩的下端,且轴肩的下端端面通常为与焊具轴向相垂直的平面。如此,在进行焊接操作时,由搅拌针切削待焊接母材所产生的塑性材料在受到轴肩的下端端面挤压时,容易外溢,进而形成飞边,影响焊缝质量。因此,如何提供一种搅拌摩擦焊的焊具,可较大程度地避免飞边的产生,仍是本领域技术人员亟待解决的技术问题。
技术实现思路
本技术的目的是提供一种搅拌摩擦焊的焊具,该焊具可较大程度地避免飞边的产生。为解决上述技术问题,本技术提供一种搅拌摩擦焊的焊具,包括轴肩和搅拌针,所述搅拌针设于所述轴肩的下端;所述轴肩的下端还设有环绕所述搅拌针的凹槽,所述轴肩的下端面与所述轴肩的轴向垂直,且处于焊接状态时,所述下端面与待焊接母材的上表面相接触。本技术所提供搅拌摩擦焊的焊具,其轴肩的下端设有凹槽,且处于焊接状 ...
【技术保护点】
1.一种搅拌摩擦焊的焊具,包括轴肩(1)和搅拌针(2),所述搅拌针(2)设于所述轴肩(1)的下端,其特征在于,所述轴肩(1)的下端还设有环绕所述搅拌针(2)的凹槽(3),所述轴肩(1)的下端面(11)与所述轴肩(1)的轴向垂直,且处于焊接状态时,所述下端面(11)与待焊接母材(4)的上表面相接触。
【技术特征摘要】
1.一种搅拌摩擦焊的焊具,包括轴肩(1)和搅拌针(2),所述搅拌针(2)设于所述轴肩(1)的下端,其特征在于,所述轴肩(1)的下端还设有环绕所述搅拌针(2)的凹槽(3),所述轴肩(1)的下端面(11)与所述轴肩(1)的轴向垂直,且处于焊接状态时,所述下端面(11)与待焊接母材(4)的上表面相接触。2.根据权利要求1所述搅拌摩擦焊的焊具,其特征在于,所述凹槽(3)的底壁(31)与周壁(32)相垂直,且所述底壁(31)设有导向机构。3.根据权利要求2所述搅拌摩擦焊的焊具,其特征在于,所述导向机构为螺旋槽(33)。4.根据权利要求1所述搅拌摩擦焊的焊具,其特征在于,所述搅拌针(2)呈自上而下尺寸逐渐缩小的锥状,其外壁面设有导向螺纹。5.根据权利要求1-4中任一项所述搅拌摩擦焊的焊具,其特征在于,所述...
【专利技术属性】
技术研发人员:李振江,鄢桂珍,汪认,张铁浩,池浩瀚,
申请(专利权)人:中车青岛四方机车车辆股份有限公司,
类型:新型
国别省市:山东,37
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