英语翻译砂带磨削特点砂带磨削与砂轮磨削同样都是高速运动的“微刃切削刀具”———磨粒的微量切削而形成的累积效应,因而其磨削机理大致上也是相同的.但由于砂带本身的构成特点和

英语翻译砂带磨削特点砂带磨削与砂轮磨削同样都是高速运动的“微刃切削刀具”———磨粒的微量切削而形成的累积效应,因而其磨削机理大致上也是相同的.但由于砂带本身的构成特点和
英语翻译
砂带磨削特点
砂带磨削与砂轮磨削同样都是高速运动的“微刃切削刀具”———磨粒的微量切削而形成的累积效应,因而其磨削机理大致上也是相同的.但由于砂带本身的构成特点和使用方式不同,使砂带磨削不论是在磨削加工机理方面,还是其综合磨削性能方面都有别于砂轮磨削,这主要表现在：
（1） 砂带磨削除了具有砂轮同样的滑擦、耕犁和切削作用外,还有磨粒对工件表面的挤压作用,并使之产生塑性变形、冷硬层变化和表层撕裂,以及由于摩擦使接触点温度升高,而引起的热塑性流动等综合作用.所以,从这点来看,砂带磨削同时具有磨削、研磨和抛光的多重作用.而这也正是砂带磨削表面质量好的原因.另一方面,由于砂带的这种弹性磨削特点,还使砂带在磨削区域内与工件接触的长度比砂轮大,同时参加磨削的磨粒数目多,单颗磨粒所受载荷小,且均匀,磨粒破损小.
（2） 经过精选的针状砂粒采用先进的“静电植砂法”,使砂粒均匀直立于基底、且锋口向上、定向整齐排列,等高性好,容屑间隙大,接触面小,具有较好的切削性能.应用这一多刀多刃的切削工具进行磨削加工,生产效率高.
（3） 砂带磨削时接触面小,摩擦发热少,可以有效地减少工件变形及烧伤,加工精度高,砂带在磨削时是柔性接触,具有较好地磨削、研磨和抛光等多重作用,再加上磨削系统振动小,磨削速度稳定使得表面加工质量粗糙度值小,残余应力状态好,工件的粗糙度可达Ra0.4－0.1μm,且表面有均匀的粗糙度,加工表面质量高.
（4） 砂带磨削可以用于平面、外圆、内圆磨削、复杂的异形面加工.除了有各种通用、专用设备外,设计一个砂带磨头能方便地装于车床和铣床等常规现成设备上,不仅能使这些机床功能大为扩展,而且能解决一些难加工零件如超长、超大型轴类、平面零件、不规则表面等的精密加工,砂带磨削工艺灵活性大,适应性强.
( 5) 适用范围广:砂带磨削几乎可以加工所有的工程材料,如有色金属、非金属材料、难加工材料等,均有良好的磨削加工性能[ 10~12] .
( 6) 生产成本低、经济效益好:砂带磨床结构简单,制造成本比砂轮磨床的低; 新砂带调整容易,可以一次定位,多次更换砂带; 有实验证明,砂带磨削的磨削比( 切除工件材料重量与磨粒消耗重量之比) 可达300:400:1,而砂轮磨削仅为30:1.
超高速磨削突破了传统磨削的概念,可集粗精加工于一身,达到可与车、铣和刨削等切削加工方法相媲美的金属磨除率,而且能实现对难磨材料的高性能加工,被誉为现代磨削技术的高峰.
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英语翻译砂带磨削特点砂带磨削与砂轮磨削同样都是高速运动的“微刃切削刀具”———磨粒的微量切削而形成的累积效应,因而其磨削机理大致上也是相同的.但由于砂带本身的构成特点和
Abrasive belt grinding characteristics
Abrasive belt grinding and the grinding wheel is the same high-speed movement of the" micro cutting tool" -- abrasive micro cutting and forming the cumulative effect, so the grinding mechanism of roughly the same. But because the belt itself form characteristics and use in different ways, so that the abrasive belt grinding in grinding mechanism, or the grinding performance are different from the grinding wheel, which is mainly shown in the:
(1) in addition to having the same belt grinding wheel sliding, plow and cutting effect, and abrasive particles on the surface of the workpiece and the extrusion effect, so that the plastic deformation, chilled layer change and surface tear, and due to the friction point of contact temperature rise, caused by the flow of the thermoplastic comprehensive effect. So, from this point of view, abrasive belt grinding with grinding, grinding and polishing of the multiple roles. This is the reason of abrasive belt grinding surface quality. On the other hand, because of the elastic characteristics of abrasive belt grinding, abrasive belt grinding area also in contact with the workpiece length ratio of grinding wheel in grinding, abrasive number, single diamond grain by the load is small, and uniform, wear particle breakage of small.
(2) selected acicular sand using advanced " electrostatic sand planting method", make the sand uniform upright on the basal, and edge upward, directional array, high performance, chip clearance, contact surface is small, with better cutting performance. The application of this a knife cutting tool grinding processing, high production efficiency.
(3) the abrasive belt grinding contact surface friction small, less heat, can effectively reduce the deformation of the workpiece and burn, high precision machining, abrasive belt grinding is in flexible contact, and has better grinding, grinding and polishing of multiple roles, plus the grinding system of small vibration, grinding speed because of the stability of surface roughness the value of small, residual stress, the workpiece roughness of up to Ra0.40.1u m, and surface roughness of machined surface of uniform, high quality.
(4) the abrasive belt grinding can be used for planar, cylindrical, internal grinding, complex shaped surface processing. In addition to a variety of general, special equipment, the design of a belt grinding head can be conveniently arranged on the lathe and milling machine and other conventional off-the-shelf equipment, not only can make the function of machine tool expands greatly, but also can solve some difficult parts, such as the long shaft, super large plane parts, irregular surface such as precision machining, the abrasive belt grinding process flexibility, strong adaptability.
(5) applies to a wide range of abrasive belt grinding processing: almost all engineering materials, such as non-ferrous metals, non-metallic materials, material processing, have good grinding performance [10~12].
(6) the production cost is low, economic benefits is good : the abrasive belt grinding machine has the advantages of simple structure, low manufacturing cost than grinding machine; new abrasive belt adjust easily, can be positioned at one time, the replacement of several belt; it has been proved that, the abrasive belt grinding grinding ratio ( removal of the workpiece material weight and grain consumption weight ratio up to 300: 1)400: 1, and the grinding wheel is only 30:1.Ultra high speed grinding breaks through the concept of conventional grinding, can set the coarse and fine processing in one, can be achieved with cars, milling and planing cutting method is comparable to that of the metal removal rate, but also can realize the hard grinding material for high performance machining, known as the modern grinding technology summit.