当前，机械行业的发展形势一派大好。能源、交通、基础设施建设等行业对机械产品的需求十分旺盛，使一些企业的产品订单已经排到了2008年甚至更远，企业完成生产任务的压力很大；与此同时，很多企业也还面临着来自市场的交货期与价格的竞争。在这样的形势面前，不少企业都面临着生产任务繁重与切削加工效率低下的矛盾，在想方设法提高加工的效率。 尽管近年来我国的切削加工及刀具技术已取得一定的进步，但与现代切削技术的先进水平相比，总体上仍存在着不小的差距。在这种情况下，应用先进的切削技术及刀具提高企业的加工效率大有潜力可挖，对于保证生产任务的完成可发挥重要的作用。这也是全行业难得的大抓切削技术的好时机。 那么，如何应用现代切削技术提高企业的加工效率呢？可以从以下几方面入手： 肯纳金属公司的复合钻 首先，近几年切削技术迅速发展的一个重要标志是刀具材料性能的不断改善和涂层技术的快速进步，尤其是量大面广的硬质合金材料及其车刀、铣刀可转位刀片。各刀具公司新开发的硬质合金刀片牌号似雨后春笋，其品种遍及切削加工的各个领域。通常一种新牌号的推出可使切削效率提高20%~30%，有的甚至高达 100%。因此全面审视企业长期使用的老材质，淘汰一部分老牌号，采用相应的新材质、新牌号，尤其是用涂层牌号代替非涂层牌号，对于提高加工效率可以收到立竿见影的效果。 其次是快速发展的新的刀具结构，对提高加工效率同样有重要的作用。如山特维克可乐满新推出的CoroDrill880硬质合金可转位浅孔钻，由于在刀具(片)的结构上作了重大改进，与原来的浅孔钻比较，进给速度或切削速度可提高将近一倍，加工效率可提高70%左右，并且可以获得更好的加工精度和表面质量。又如哈尔滨汽轮机厂在生产国内首台60万千瓦超临界汽轮机组时，遇到了大直径深孔加工的难题，如果用传统的孔加工刀具加工，每个孔要6.7小时，便无法完成加工任务。后来该厂采用肯纳金属公司的一种复合钻，每个孔的加工时间只需0.5小时，减少加工时间约93%，原先40天没有完成的约200个深孔的加工任务，5天就全部完成了。可见企业应积极利用丰富的先进刀具资源提高加工效率或解决生产中遇到的加工难题，并以此为契机，不断提高企业切削技术和刀具的应用水平。 第三，近几年工具工业为某些机械行业开发的新型刀具，具有高效或创新工艺的特点，对推动行业加工技术的进步起到重要作用。如为模具工业开发的插铣(钻)刀、多功能铣刀、大进给铣刀、牛角铣刀等刀具，对提高模具加工效率、革新模具加工工艺发挥了十分重要的作用。因此，企业要利用参加培训班、研讨会、参观展览会等学习机会，及通过杂志广告、专业网站等信息渠道，及时了解和收集本行业刀具的新进展，为我所用，使企业始终保持着先进的切削加工水平和的加工效率。 此外，切削技术有一部分共性的成果，如代替焊接刀的可转位刀具、刮光车刀片和带前角的螺旋刃铣刀片等可转位刀片、可代替通用高速钢刀具的整体硬质合金钻头、立铣刀等刀具，这些刀具对提高量大面广的车、铣、钻工序的加工效率有普遍效果，并早已为生产实践所证明，目前已在我国的部分企业中得到应用。
At present, the development situation of the machinery industry is very good. The demand for mechanical products in energy, transportation, infrastructure construction and other industries is very strong, so that the product orders of some enterprises have been arranged to 2008 or even further, and enterprises are under great pressure to complete production tasks; At the same time, many enterprises are also facing the competition of delivery time and price from the market. In the face of such a situation, many enterprises are facing the contradiction between heavy production tasks and low machining efficiency, and are trying to improve the machining efficiency. Although China's cutting and tool technology has made some progress in recent years, there is still a big gap compared with the advanced level of modern cutting technology. In this case, the application of advanced cutting technology and cutting tools to improve the processing efficiency of enterprises has great potential, which can play an important role in ensuring the completion of production tasks. This is also a rare opportunity for the whole industry to grasp cutting technology. So, how to apply modern cutting technology to improve the machining efficiency of enterprises? We can start from the following aspects: Kenner metal's compound drill. Firstly, an important sign of the rapid development of cutting technology in recent years is the continuous improvement of tool material properties and the rapid progress of coating technology, especially the large amount and wide range of cemented carbide materials and their turning and milling indexable inserts. The brand of cemented carbide inserts newly developed by various cutting tool companies seems to have sprung up, and their varieties cover all fields of cutting processing. Generally, the introduction of a new brand can improve the cutting efficiency by 20% ~ 30%, and some even as high as 100%. Therefore, comprehensively examining the old materials used by enterprises for a long time, eliminating some old brands and adopting corresponding new materials and brands, especially using coating brands instead of non coating brands, can achieve immediate results in improving processing efficiency. The second is the rapid development of new tool structure, which also plays an important role in improving machining efficiency. For example, the new corodrill 880 cemented carbide indexable shallow hole drill launched by Sandvik Keleman has made significant improvements in the structure of the tool (piece). Compared with the original shallow hole drill, the feed speed or cutting speed can be nearly doubled, the machining efficiency can be increased by about 70%, and better machining accuracy and surface quality can be obtained. As another example, Harbin steam turbine plant encountered the problem of large-diameter deep hole processing when producing the first 600000 kW supercritical steam turbine unit in China. If it is processed with traditional hole processing tools, each hole will take 6.7 hours, so it will not be able to complete the processing task. Later, the factory adopted a compound drill of Kenna metal company. The processing time of each hole was only 0.5 hours, reducing the processing time by about 93%. The processing task of about 200 deep holes that had not been completed in 40 days was completed in 5 days. It can be seen that enterprises should actively use rich advanced tool resources to improve machining efficiency or solve machining problems encountered in production, and take this opportunity to continuously improve the application level of cutting technology and tools. Third, the new cutting tools developed by the tool industry for some machinery industries in recent years have the characteristics of high efficiency or innovative process, and play an important role in promoting the progress of processing technology in the industry. For example, the insert milling (drilling) cutter, multifunctional milling cutter, large feed milling cutter, ox horn milling cutter and other tools developed for the mold industry have played a very important role in improving the mold processing efficiency and innovating the mold processing technology. Therefore, enterprises should take advantage of learning opportunities such as participating in training courses, seminars and exhibitions, as well as through magazine advertisements, professional websites and other information channels to timely understand and collect the latest progress of cutting tools in the industry for our own use, so that enterprises can always maintain advanced cutting processing level and leading processing efficiency. In addition, there are some common achievements in cutting technology, such as indexable blades instead of welding cutters, scraping turning blades and spiral edge milling blades with rake angles, integral cemented carbide drill bits and end mills that can replace general high-speed steel tools. These tools have a universal effect on improving the processing efficiency of turning, milling and drilling processes in a large number and a wide range, and have long been proved by production practice, At present, it has been applied in some enterprises in China.
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