The geometric angle of the tool
Source： Shenzhen Huartuo Technology Co., LtdPopularity：709Published：2017-07-19 14:12:32【SML】
Source: Shenzhen Waldorf Carbon Technology Co., Ltd. Popularity: 6 Published: 2017-06-20 17:08:22 【Small and medium-sized】
Graphite tools select the appropriate geometric angle, help to reduce the vibration of the tool, in turn, graphite parts are not easy to collapse.
(1) the front angle, the negative front angle of the graphite processing, the tool edge strength is better, impact resistance and friction performance, with the negative front angle of the absolute reduction in the flank wear area changes little, but The overall trend is reduced, the use of positive rake processing, with the rake angle increases, the blade edge strength is weakened, but led to increased flank wear. Negative rake angle, the cutting resistance is large, the cutting vibration is increased. When the machining is carried out with the front angle, the tool wear is serious and the cutting vibration is also large.
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(2) after the angle, if the rear corner increases, then the cutting edge strength decreases, the flank wear area gradually increased. After the tool angle is too large, the cutting vibration is strengthened.
(3) the helix angle, the helix angle is small, the same cutting edge at the same time cut into the graphite workpiece blade length is the longest, cutting resistance is greatest, the tool to bear the maximum impact of cutting, and thus tool wear, milling and cutting vibration are the largest The When the helix angle to the larger, the direction of milling together from the workpiece surface of the degree of large, graphite material due to collapse caused by the impact of increased cutting, so the tool wear, milling and cutting vibration are also increased. Therefore, the tool angle changes on the tool wear, milling force and cutting vibration is the impact of the rake angle, angle and helix angle generated, so the choice must be more attention. Through the processing of graphite materials to do a lot of scientific testing, PARA tool to optimize the geometric angle of the relevant tool, making the overall cutting performance of the tool greatly improved.
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