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Today's topic is: 2021 Fortune Global 500 Sub-Industry List: Aerospace and Defense Original link: In this list, Forbes summarizes 13 companies whose main projects are aerospace and defense, 6 in China, 5 in the United States, and 2 in Europe (Airbus France and BAE Systems in the United Kingdom); There are also some industries that generally list a little later each year; A major source of information related to the aviation and defense sector is the annual Top 100 Defense List of Defense News; And the British "Brand Finance" (Brand Finance) released the "Biennial World's 25 Most Valuable Aerospace and Defense Brands" list (Aerospace & Defense 25 Biennial), Wait for the more professional Top 100 Defense to Companies 2021 around August 15, and I will continue to write the article; All the leaderboards are designed to reflect the competition, the current situation; extrapolation of subsequent changes; The logic behind is induction, comparison, prediction (time vertical axis, ranking horizontal axis, curve outlook) track upper and lower limits, etc; Analysis category: US-China, P5, BRICS and industrialized countries; Due to well-known reasons, after the founding of the Republic, the construction of the industrial system relied on Soviet aid (the time was too short), the times were turbulent, and it entered the stage of self-reliance (the time was long). On the basis of a thin belly and no knowledge, it completed the establishment of weapons with two bombs and one star, Later, it was in line with the international community (joining the United Nations, establishing diplomatic relations between China and the United States, disarmament, land contracting, reform and opening up, and entering the WTO), and made certain progress in the field of people's livelihood, as well as in the field of regular industry and commerce, and the goals of the four modernizations were partially realized; In the future, there will still be resistance and motivation for the rise of China (restoration of resurgence). Briefly expand the basic idea; 1. The dome of energy and environment. For example, according to the developed countries, especially the developed countries in the United States and Europe, the American lifestyle needs 5 times of energy and environment; the European lifestyle needs 3 times of energy and environment; 2. Due to the limitation of geography and times, the Asia we live in has a limited land and sea area, and its resource carrying capacity and population carrying capacity are all 3 to 5 times that of the United States and Europe. Factors such as geographical expansion, industry, and technology have certain latecomer disadvantages; 3. Looking at the future from the past, never looking at the past, looking at the future and the past from reality, we should all have the ability and confidence to do a good job in China and Asia; there is a long way to go, and we should constantly strive for self-improvement;

2021

Four-axis machining center and its characteristics

1. what is a four-axis machining center The four-axis machining center refers to the machining center corresponding to the fourth axis of the CNC machine tool. In the three-axis CNC machining center, a rotating axis is added, usually called the fourth axis. Machining center is mainly used for processing plane, groove, curved surface, is the fastest growing products in CNC machine tools, is also the most widely used machine tools, machining center for machining, mold, shipbuilding industry, automotive and parts, aerospace and other fields. Features of 2. four-axis machining center (1) Four-axis machining programming is complex and difficult. Because multi-axis machining is different from the three-axis, it is in addition to the three linear motion, there are 1 to 2 rotational motion involved, the formation of the synthetic motion of the spatial trajectory is very complex and abstract, generally difficult to imagine and understand. For example, in order to process the required space free-form surface, it is often necessary to use multiple coordinate transformations or complex tool axis pointing control methods, and at the same time consider the coordination of the movement of each axis to avoid interference and collision. Four-axis machining can improve production efficiency. Multi-axis CNC machining can simultaneously control the linkage of more than 4 coordinate axes, and combine the functions of CNC milling, CNC boring, CNC drilling, etc. After the workpiece is clamped at one time, the machining surface can be milled, bored, drilled and other multi-process processing, effectively avoiding the positioning error caused by multiple installations, shortening the production cycle and improving the machining accuracy. 3. The four-axis CNC machining center has the characteristics of high precision. In the process of four-axis machining, the workpiece can complete the processing of multiple surfaces after one clamping, and can also perform high-precision machining of complex spatial surfaces. Very suitable for processing auto parts, aircraft structural parts and other parts of the forming mold. 3. compared to three-axis machining four-axis advantages Disadvantages of three axis machining: 1. The tool length is too long, the tool cost is too high 2. Tool vibration leads to roughness problem 3. Process increase, multiple clamping 4. The tool is easy to break 5. Increased number of tools 6. Unqualified workpieces caused by over-cutting 7. Repeat the knife to produce cumulative tolerances. Four-axis advantages: 1. The tool has been greatly improved 2. The processing process shortens the clamping time 3. No fixture required 4. Improve surface quality 5. Extend tool life 6. Centralization of production 7. Effectively improve processing efficiency and production efficiency. Main Application Fields and Typical Parts of 4. Four-axis Machining Main fields: aviation, shipbuilding, medicine, automobile industry, mold. Typical parts: cam, turbine, worm, propeller, shoe mold, mannequin, auto parts, other precision parts processing. Nanjing Arrow Piercing Stone Industry and Trade Co., Ltd. is committed to the end of the mechanical industry solutions, the main machine tool and robot end tools. Covers machine tool accessories, cutting tools, product fixtures, and automation products. The product matrix is perfect, with both breadth (Breadth) and depth (Depth), and the service matrix has both sharpness (acuity) and heaviness (massiness); Arrow Stone spills wisdom and sweat in the field of industrial teeth and industrial fingers to create more value for your enterprise. Welcome to inquire!

2021

Towards intelligent machine tools

2021

Introduction to YG-1 TS3167 Powder Metallurgy Taps and DIN Standards

The YG-1 TS3167 series powder metallurgy taps are made of YG strict quality control and unique geometry can prevent over-feed and fine thread problems, achieving shorter processing time and higher production efficiency. The TS3167 series taps are consistently praised for their excellent quality and unique design and are constantly maintained as the first choice. YG-1 TS3167 Applicable material Three characteristics of YG-1 DIN full series powder metallurgy tap series in China European Quality: High Quality German Design: High Level Made in Asia: Cost-effective ● Definition and technical advantages of powder metallurgy ● Powder metallurgy: the process of making metal or using metal powder (or a mixture of metal powder and non-metal powder) as raw material, forming and sintering to manufacture metal materials, composite materials and various types of products.

2021

MPM-Leader of Dynamic Balancing Machines

2021

Arrow Stone Product Matrix-Cutter

2020

Top 10 Cutting Tool Brand Sales Ranking in German Market

德国机械商协会(VDW)精密工具分会(Przisionswerkzeuge)及《工具》杂志(《werkzeuge》)发布了德国市场上各切削工具品牌的销售排名。大家盘点了一下在德国市场上卖得最好的十大切削工具品牌，快来看看你都用过哪些品牌的产品！注：德国市场切削品牌销量图 1、钴领德国钴领集团是全球第三大旋转刀具制造商，成立于1898年，由Mr. Gottlieb Guhring创建, 迄今已有一百年的历史。公司总部位于德国南部的工业城市Stuttgart附近的Albstadt, 占地约4万平方米。德国GUHRING公司系生产机械刀具及其附属产品的厂家，其产品主要有：普通麻花钻头、阶梯钻头、中心钻、硬质合金钻头、丝锥、立铣刀、铰刀、倒角刀、锪钻、枪钻以及各种根据用户要求定做的非标准刀具。德国GUHRIGN公司产品主要应用在汽车、航空及机械制造业，尤其在汽车工业以及机床行业，更是得到广泛应用。GUHRING公司还是德国大众、奔驰、宝马、空客等公司的刀具重要供货商。在包括美国、英国、巴西、日本、韩国、捷克等十九个国家设立了工厂。 2、森拉天时森拉美德(CERAMETAL)和攀时(PLANSEE TIZIT)合并。2002年11月29日，位于奥地利Reutte 的攀时集团执行董事会和位于卢森堡Mamer的森拉美德股东就他们的硬质合金事业合并事项签署了协议。由攀时和森拉美德合并组立的森拉天时公司总部将设在卢森堡。攀时集团和森拉美德各持有森拉天时公司50%的股份。森拉天时(ceratizit)拥有400,000,000欧元销售额和3500名员工。公司在全球3个经济区域中拥有超过30个生产和销售公司, 并在中国区设有生产基地，是世界上大的硬质合金品牌制造厂之一。 3、霍夫曼霍夫曼集团的历史可以追溯到 1919 年。公司目前在50多个国家拥有超过2,700名员工，其中包括了1,200位获得资质的专业顾问。科隆的 Gdde 公司、布伦瑞克的Perschmann、比勒菲尔德的Oltrogge 公司均属于霍夫曼集团在德国的法律独立合作公司。在国际方面，霍夫曼和瑞士的SFS unimarket公司、瑞典的Ravema公司，以及立陶宛的UAB Metmatus公司共同合作。霍夫曼旗下产品包括整体式切削刀具、模块式切削刀具、夹具、测量工具、磨削切割工具、旋紧工具等。霍夫曼是数控刀具领域的优质供应商。 4、山特维克可乐满山特维克可乐满成立于1942年，隶属于山特维克集团，公司总部位于瑞典山特维肯(Sandviken)，在瑞典基默(Gimo)拥有世界最大的硬质合金刀片制造厂。山特维克可乐满在全球60多个国家设有73家子公司或分公司。山特维克可乐满在全球共计有39个生产基地、3个中央仓库、19个培训中心。 5、玛帕 MAPAL集团是一家德国家族型企业集团，是世界领先的机械加工刀具生产商，产品服务覆盖汽车业、航空航天业、发动机行业、轨道交通业以及新兴的风电行业等。MAPAL集团创立于1950年德国AALEN，创始人Georg Kress博士。 MAPAL以“世界上第一把单刃引导铰刀”为起点铸就起刀具的世界。旗下产品包括精密铰刀和精密镗刀、金刚石复合刀具、ISO刀具、整体硬质合金刀具、展开式刀具、夹紧系统、对刀仪等。 6、肯纳金属肯纳金属公司(Kennametal Inc.纽约证交所代号：KMT)创建于1938年。当时，美国冶金学家菲利普·M.麦克肯纳(Philip M.McKenna)经过多年的潜心研究，发明了一种碳化钨-钛合金(tungsten-titanium carbidealloy)刀具新材料，可使切削钢材的加工效率获得突破性提高。以这项发明为基础，菲利普在宾夕法尼亚州的拉特罗比(Latrobe)创立了麦克肯纳金属公司(McKenna Metals Company，后更名为肯纳金属公司)。如今，肯纳公司已发展成为在切削刀具、工具系统、新型材料、技术服务等领域具有世界领先水平的大型跨国集团公司。公司生产的硬质合金、高速钢、陶瓷、工业金刚石及其它材料、刀具产品等已广泛应用于航空、汽车、建筑、农机、发电、运输、油气勘探、家庭用具等工业及民用领域。 7、号恩德国号恩HORN公司成立于1969年，是全球著名的槽刀专家，尤其精于处理各类特殊槽加工及小径内孔槽加工。HORN的产品包括切槽，铣槽和切断三大类。可细分为外圆槽刀、外圆切断刀、内刀圆槽刀、端面槽刀、成型槽刀、模块式槽刀、内孔直径0.3mm以上的微型内圆槽刀、T型槽刀以及各种成型槽刀等。 8、瓦尔特瓦尔特股份公司是一家全球领先的金属加工企业，在全球拥有七个生产基地、超过 3500 名员工。目前，瓦尔特拥有34家子公司(欧洲 20家，南美和北美 5家，亚洲 9家)。瓦尔特专业提供各种用于铣削、车削、孔加工和螺纹加工的精密刀具。产品广泛应用于机械工程、汽车行业、航空航天业、能源行业、刀具与模具制造业。 9、埃莫克法兰肯埃莫克法兰肯(EMUGE-FRANKEN)是一家有90多年历史的在螺纹加工、铣削加工、工件夹固以及精密量具领域提供尖端技术的集团公司。公司总部及生产基地位于德国纽伦堡市附近的劳夫市和吕克斯多夫镇。目前，埃莫克法兰肯的销售网络已经遍及全球42个国家和地区，旗下工具系列包含大约110000种不同的产品，在金属材料加工和夹固技术方面表现杰出。 10、伊斯卡伊斯卡(ISCAR)公司作为世界上最大的金属切削刀具生产厂家之一，是伯克希尔·哈撒韦的主要子公司之一。公司于2006年被巴菲特先生收购，在此之前，是以色列最大的家族企业。伊斯卡总部位于以色列的TEFEN，其子公司及代理机构遍及全球50多个国家。伊斯卡研发、生产、销售切槽、车、铣、镗、钻、铰、刀柄系统等全系列刀具，致力于为航空、汽轮机、汽车、模具、机床、机床配刀提供全套解决方案。

2020

Xiongke clamp tower and cone tower

2020

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Nanjing Arrow Piercing Stone Industry and Trade Co., Ltd.

Nanjing Arrow-Stone Industry Co. ,Ltd

Telephone: 86 025 84958290

Address: No. 105, Building 8, District 8, Lingxin Market, Jiangning District, Nanjing

Links:Arrow Pierces Stone Ali Store Machining Doctor

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