Importance

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Abstract

An electric energy transmission aluminum part and a machining process therefor including an aluminum conductive device (1) and an aluminum cable, with the aluminum cable including an aluminum conductive core (2) and an insulation layer (3) cladding a surface of the aluminum conductive core (2). An exposed section of the aluminum conductive core (2) with the insulation layer (3) stripped from the aluminum cable and at least part of the aluminum conductive core (2) clad with the insulation layer (3) are crimped inside the aluminum conductive device (1). A transition section (4) with a trapezoidal axial cross-section is provided at a junction between the insulation layer (3) and the exposed section of the aluminum conductive core (2) in the aluminum conductive device (1). Taking the transition section (4) as a demarcation point, an inner diameter of an end of the aluminum conductive device (1) that is crimped with the insulation layer (3) is greater than an inner diameter of an end of the aluminum conductive device (1) that is crimped with the aluminum conductive core (2). At least one concave structure is provided on a periphery of the aluminum conductive device (1). The concave structure provided on the surface of the aluminum conductive device (1) can effectively prevent the aluminum conductive device (1) from moving relative to a clamp, so as to solve the problem of displacement or rotation of the aluminum conductive device (1) in the clamp during welding, and improve the welding efficiency and the yield.

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First Claim