Currently, some brush-users in order to compensate for lack of certain features of the abrasive brush, and do a single change, such as: bold wire diameter, use a more coarse abrasive, longer length wire brush, etc., although it seems to solve the problem, has brought more new problems, such as: 1, bold wire diameter (1) The user's intention is clear, bold Mounted flap wheel wire diameter is to improve the hardness, enhance the cutting forces. But the real high-quality abrasive wire, hardness and flexibility to obtain an optimal balance performance: suitable hardness make products have a good rigidity, good contact and grinding the workpiece; appropriate flexibility so that the brush has good elasticity, both ensure the machining accuracy of the workpiece surface, but also reduce brush wear of the polishing operation and the internal stress, thereby improving the life of the brush, do not appear broken wire. (2) There have been experiments show that: all of the conditions the same, but not the same wire diameter, 14mil 12mil wear volume is twice the wire brush. Bold wire diameter caused major problems are: reduction in the velcro disc density wire brush, reduce fatigue resistance, wear faster and shorter life, grinding stress increases, more broken wires. 3) is correct: the hardness of the brush can meet the technical requirements of the premise, as compared to filament diameter. 2, extended length wire brush
Users feel, scrap grinding brush bristles shorter, longer wire brush, better flexibility, durability should be better longer. It made a major mistake! Lengthened bristles, wire brush section is not working, but the wire brush on the side of the work, even worse is the Bonded abrasives oscillation amplitude of each strand (angle) a significant increase (see Figure 1), at 800-2500 rpm / min, wire brush foundation of internal stress and fatigue factor increased exponentially, resulting in extremely abrasive wire brush broken wires and filaments significant deformation. Description: When the correct length 8CM wire brush, the brush bristles swings about 25 degrees, and more extended 1CM, an increase of about 10 degree angle, wire brush foundation of internal stress and fatigue factor multiplied.
Metal cutting theory and practice in the production of cutting experiments, summed up the metal cutting process on basic physical phenomena variation theory. These basic physical phenomena, including: cutting deformation, cutting force, cutting temperature and tool . Learn and master these rules, in order to improve the productivity of machining, processing quality and lower production costs.
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