润滑科技信息平台

专利摘要

一个目的是提供一种元件、一种摩擦元件焊接方法以及一种用于制造摩擦元件焊接接头的方法。本发明是一种元件,用于通过在元件旋转时将元件压入片材堆中来在两个或更多个堆叠的金属板材的片材堆上执行摩擦元件焊接。该元件包括: 进入板堆的圆柱形心轴; 设置在心轴上端部的圆环; 从心轴的下端面延伸出第一锥体; 第二锥体设置于第一锥体的下侧。第二锥体的垂直角β与第一锥体的垂直角α满足β<α的关系。 ......

基本信息

专利类型:
发明专利
申请/专利号:
EP2021849452
申请日期:
2021-07-26
专利申请人:
分类号:
B23K20/12
发明/设计人:
MUNEMURA, NAOAKI ， MATSUDA, HIROSHI ， MURAKAMI, YOSHIAKI
权利要求: 1. An element for performing friction element welding on a sheet stack of two or more stacked metal sheets by pressing the element into the sheet stack while the element is rotated, the element comprising: a circular columnar mandrel that is to enter the sheet stack; a circular disk-shaped collar disposed at an upper end portion of the mandrel; and a first conical body extending from a lower end surface of the mandrel, wherein a diameter of the collar is larger than a diameter of the mandrel, wherein an outer circumferential portion of the collar has a downward inclined or curved shape, wherein a center axis of the first conical body coincides with a center axis of the mandrel, wherein the element further comprises a second conical body disposed in contact with a lower side of the first conical body, wherein a bottom surface of the second conical body is smaller in diameter than a bottom surface of the first conical body, wherein a center axis of the second conical body coincides with the center axis of the mandrel, and wherein a vertical angle β(°) of the second conical body and a vertical angle α(°) of the first conical body satisfy the following relation: β < α .2. The element according to claim 1, wherein the vertical angle α(°) of the first conical body satisfies 140 ≤ α < 180 , and wherein the vertical angle β(°) of the second conical body satisfies 90 ≤ β < 140 .3. The element according to claim 1 or 2, wherein a distance L (mm) from a lowermost end of the outer circumferential portion of the collar to an apex of the second conical body in a direction parallel to the center axis of the mandrel satisfies the following relation: T TOTAL − T BOTTOM + 0.02 mm ≤ L ≤ T TOTAL − T BOTTOM + 4 mm where TTOTAL (mm) is a total thickness of the sheet stack, and TBOTTOM (mm) is a thickness of a lower sheet in the sheet stack.4. The element according to any one of claims 1 to 3, wherein a lower sheet in the sheet stack is a steel sheet, and wherein an upper sheet in the sheet stack is a light metal.5. The element according to any one of claims 1 to 3, wherein a lower sheet in the sheet stack and an upper sheet in the sheet stack are both steel sheets.6. The element according to any one of claims 1 to 5, wherein an outer surface of the first conical body and an outer surface of the second conical body each have a coating film formed of a wear resistant material.7. A friction element welding method comprising joining a sheet stack of two or more stacked metal sheets by pressing an element into the sheet stack while the element is rotated, wherein the element used is the element according to any one of claims 1 to 6.8. A method for producing a friction element welded joint, the method comprising joining a sheet stack of two or more stacked metal sheets by pressing an element into the sheet stack while the element is rotated, wherein the element used is the element according to any one of claims 1 to 6.