1.型材強(qiáng)度、硬度高,消耗的功率增大,導(dǎo)熱系數(shù)和熱容小,散熱能力降低。
The strength and hardness of the 1. profiles are high, the power consumption is increased, the thermal conductivity and heat capacity are small, and the heat dissipation ability is reduced.
2.雙頭切割鋸的切削速度影響,切削速度增加,消耗的功率增加70%-80%。工進(jìn)吃刀量增加,切削功率成倍增加,但切削鋸片熱量也成倍增加。
The cutting speed of 2. double cutting saw has the biggest influence, the cutting speed increases, and the consumed power increases by 70%-80%. Increase the depth of cut feed, cutting power increases exponentially, but the cutting blade heat also increases exponentially.
顯然,從切削溫度的角度出發(fā),既要提高生產(chǎn)量,又使切削溫度不過(guò)于升高,所以,選擇切削用量的原則是:大的背吃刀量,較大的進(jìn)給量,小的進(jìn)給速度。
Obviously, starting from the angle of the cutting temperature, it is necessary to improve the production capacity, and the cutting temperature is increased, so the choice of cutting principle is: the depth of a large amount of feed, larger volume, lower feed rate.
3.刀具參數(shù)前角增加,變形和摩擦減小,切削功率降低,產(chǎn)生的熱量減小,切削溫度下降,當(dāng)前角再增大,由于契角減少,散熱體積減小,切削穩(wěn)定升高。竹片叫增大,切削刃工作長(zhǎng)度減少,散熱面積減小,切削穩(wěn)定升高。
The 3. tool parameters before the angle increases, deformation and friction, cutting power to reduce the heat generated by the cutting temperature decrease, decline, the current angle increases again, because the wedge angle is reduced, the heat volume decreases, cutting stability increased. The length of the cutting edge is reduced, the heat dissipation area is reduced, and the cutting stability is increased.
4 其他因素,使用切削液可帶走熱量,減小刀具磨損,防止切削刃變鈍,導(dǎo)致變形和摩擦增大,使切削溫度升高。
4 other factors, the use of cutting fluid can take away heat, reduce tool wear, prevent cutting edge blunt, resulting in deformation and friction increase, so that cutting temperature rise.
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