Brass casing material flanging processing deformation is relatively complex, in the flaring process, the deformation zone material is mainly subject to tangential tensile stress, so that the tangential elongation deformation, flaring is completed, the stress state and deformation characteristics are similar to the inner hole flanging, the deformation zone is mainly tangential deepening deformation, and its limiting degree of deformation is mainly subject to the limitations of the edge of the edge of the tensile crack.

Considering the parts production batch is not large, and the above processing procedures are more, affecting the improvement of economic efficiency, and noted that the market has sound 30mm × 1.5mm brass tube, therefore, consider the use of copper tube through the direct flanging to complete the processing of parts.

The shape of the part is simple, and the precision requirements of each size are not high, which is conducive to forming. According to the structure of the part, usually the most economical and intuitive process plan will take into account the use of flat blanks through the inner hole flanging directly to form the part, for this reason, first of all, we must judge the use of a flanging can achieve the maximum height of the part.

As the maximum height of the part flanging is much smaller than the height of the part 28mm, therefore, the use of direct flanging method can not be made of qualified parts, to form the part must first deep drawing. After the calculation of the blank diameter, and according to the flanged deep-drawing parts of the number of deep-drawing judgement conditions, it can be determined that the parts using deep-drawing process plan, after two deep-drawing, and then remove the bottom of the barrel can be processed to complete.

Professional hardness testing are used Brinell hardness, in general, the smaller the Brinell hardness value, the softer the material, the larger the diameter of its indentation; conversely, the larger the Brinell hardness value, the harder the material, the smaller the diameter of its indentation. Brinell hardness measurement has the advantage of high measurement accuracy, large indentation area, can reflect the average hardness of the material in a larger range, the measured hardness value is also more accurate, data repeatability. If there is any doubt, welcome to call us, Xinxiang Haisan machinery professional for you to solve a variety of copper casting questions.