<label id="dlrun"></label>

<tbody id="dlrun"></tbody>
  1. <span id="dlrun"></span>
    <th id="dlrun"></th>
    <tbody id="dlrun"></tbody>
    你好,歡迎瀏覽恒鑫刀具!
    數控刀片回收

    專心 專注 專營

    服務好 效率高 誠信好 價格高

    數控刀具刀片回收

    聯系電話:

    18605312229

    當前位置:首頁>新聞中心>常見問題>金剛石刀具種類有哪些?

    金剛石刀具種類有哪些?

    來源:http://www.wuyinlpjm.cn/ 日期:2021-09-23 發布人:hengxin

    ① 天然金剛石刀具:天然金剛石作為切削刀具已有上百年的歷史了,天然單晶金剛石刀具經過精細研磨,刃口能磨得極其鋒利,刃口半徑可達0.002μm,能實現超薄切削,可以加工出極高的工件精度和極低的表面粗糙度,是公認的、理想的和不能代替的超精密加工刀具。

    ① Natural diamond tools: natural diamond has been used as cutting tools for hundreds of years. After fine grinding, the edge of natural single crystal diamond tools can be extremely sharp, and the edge radius can reach 0.002 μ m. It can realize ultra-thin cutting, and can process high workpiece precision and low surface roughness. It is recognized, ideal and irreplaceable ultra-precision machining tool.
    ② PCD金剛石刀具:天然金剛石價格昂貴,金剛石廣泛應用于切削加工的還是聚晶金剛石(PCD),自20世紀70年代初,采用高溫高壓合成技術制備的聚晶金剛石(Polycrystauine diamond,簡稱PCD刀片研制成功以后,在很多場合下天然金剛石刀具已經被人造聚晶金剛石所代替。PCD原料來源豐富,其價格只有天然金剛石的幾十分之一至十幾分之一。PCD刀具無法磨出極其鋒利的刃口,加工的工件表面質量也不如天然金剛石,現在工業中還不能方便地制造帶有斷屑槽的PCD刀片。因此,PCD只能用于有色金屬和非金屬的精切,很難達到超精密鏡面切削。
    ② PCD diamond tool: natural diamond is expensive. Polycrystalline diamond (PCD) is widely used in cutting. Since the early 1970s, polycrystalline diamond has been prepared by high temperature and high pressure synthesis technology After the successful development of PCD blade, natural diamond tools have been replaced by Artificial Polycrystalline Diamond on many occasions. PCD raw materials are abundant, and its price is only one tenth to one tenth of that of natural diamond. PCD tools can not grind extremely sharp edges, and the surface quality of processed workpieces is not as good as natural diamond. Now, PCD tools are widely used in industry Therefore, PCD can only be used for fine cutting of non-ferrous metals and non metals, and it is difficult to achieve ultra precision mirror cutting.
    ③ CVD金剛石刀具:自從20世紀70年代末至80年代初,CVD金剛石技術在日本出現。CVD金剛石是指用化學氣相沉積法(CVD)在異質基體(如硬質合金、陶瓷等)上合成金剛石膜,CVD金剛石具有與天然金剛石完全相同的結構和特性。CVD金剛石的性能與天然金剛石相比十分接近,兼有天然單晶金剛石和聚晶金剛石(PCD)的優點,在一定程度上又克服了它們的不足。
    ③ CVD diamond tools: from the late 1970s to the early 1980s, CVD diamond technology appeared in Japan. CVD diamond refers to the use of chemical vapor deposition (CVD) on heterogeneous substrates (such as cemented carbide, ceramics, etc.) The properties of CVD diamond are very close to those of natural diamond. CVD diamond has the advantages of natural single crystal diamond and polycrystalline diamond (PCD), and overcomes their shortcomings to a certain extent.
    數控刀具刀片回收
    ⑵ 金剛石刀具的性能特點
    ⑵ performance characteristics of diamond tools
    ① 極高的硬度和耐磨性:天然金剛石是自然界已經發現的更硬的物質。金剛石具有極高的耐磨性,加工高硬度材料時,金剛石刀具的壽命為硬質合金刀具的lO~100倍,甚至高達幾百倍。
    ① Extremely high hardness and wear resistance: natural diamond is the hardest substance found in nature. Diamond has extremely high wear resistance. When processing high hardness materials, the service life of diamond tools is lo ~ 100 times, or even hundreds of times, that of cemented carbide tools.
    ② 具有很低的摩擦系數:金剛石與一些有色金屬之間的摩擦系數比其他刀具都低,摩擦系數低,加工時變形小,可減小切削力。
    ② It has very low friction coefficient: the friction coefficient between diamond and some non-ferrous metals is lower than that of other tools, the friction coefficient is low, the deformation during machining is small, and the cutting force can be reduced.
    ③ 切削刃非常鋒利:金剛石刀具的切削刃可以磨得非常鋒利,天然單晶金剛石刀具可高達0.002~0.008μm,能進行超薄切削和超精密加工。
    ③ The cutting edge is very sharp: the cutting edge of diamond tools can be ground very sharp, and the natural single crystal diamond tools can be as high as 0.002 ~ 0.008 μ m. Capable of ultra-thin cutting and ultra precision machining.
    ④ 具有很高的導熱性能:金剛石的導熱系數及熱擴散率高,切削熱容易散出,刀具切削部分溫度低。
    ④ It has high thermal conductivity: diamond has high thermal conductivity and thermal diffusivity, cutting heat is easy to dissipate, and the temperature of the cutting part of the tool is low.
    ⑤ 具有較低的熱膨脹系數:金剛石的熱膨脹系數比硬質合金小幾倍,由切削熱引起的刀具尺寸的變化很小,這對尺寸精度要求很高的精密和超精密加工來說尤為重要。
    ⑤ It has low thermal expansion coefficient: the thermal expansion coefficient of diamond is several times smaller than that of cemented carbide, and the change of tool size caused by cutting heat is very small, which is particularly important for precision and ultra precision machining with high dimensional accuracy.
    ⑶ 金剛石刀具的應用
    (3) application of diamond tools
    金剛石刀具多用于在高速下對有色金屬及非金屬材料進行精細切削及鏜孔。適合加工各種耐磨非金屬,如玻璃鋼粉末冶金毛坯,陶瓷材料等;各種耐磨有色金屬,如各種硅鋁合金;各種有色金屬光整加工。
    Diamond tools are mostly used for fine cutting and boring of non-ferrous and non-metallic materials at high speed. They are suitable for processing all kinds of wear-resistant non-metallic materials, such as FRP, powder metallurgy blank, ceramic materials, etc.; all kinds of wear-resistant non-ferrous metals, such as all kinds of silicon aluminum alloy; and all kinds of non-ferrous metal finishing.
    金剛石刀具的不足之處是熱穩定性較差,切削溫度超過700℃~800℃時,就會完全失去其硬度;此外,它不適于切削黑色金屬,因為金剛石(碳)在高溫下容易與鐵原子作用,使碳原子轉化為石墨結構,刀具極易損壞。
    The disadvantage of diamond tool is poor thermal stability. When the cutting temperature exceeds 700 ℃ ~ 800 ℃, it will completely lose its hardness; in addition, it is not suitable for cutting ferrous metals, because diamond (carbon) is easy to interact with iron atoms at high temperature, so that carbon atoms are transformed into graphite structure, and the tool is very easy to be damaged.

    中字无码av在线电影,国产三级精品三级男人的天堂,日本aaaaa级特黄大片,亚洲成av人片一区二区小说