| 摘要 |
<p>The wheel nut has a conical wheel engaging end, and a stainless steel sheath which covers the wrench flats and the end of the nut opposite to the conical end. A first electrode into pressured contact with the conical nut end, is brought a second electrode being brought into pressured contact with a section of the sheat directly overlying the nut to exert forces between the sheath and the nut in the area adjacent to that contacted by the second electrode. An electric pulse having a duration of less than 30 microseconds and a peak current in excess of 50,000 amperes, is passed between the first and second electrodes, to form a weld between the contacting surfaces of the sheath and the nut at said areas adjacent to the section contacted by the second electrode.</p> |
