Hi, here is TAGUTI news. Time flies. TAGUTI has spent off-season time. Though there are fewer customers during summer, TAGUTI has visited foreign clients in Europe Trip, and bring some kinds of products to them, such as edm filters, molybdenum wire, guide wheel. Of course not so heavy things.
This time we have stopped by Prague (Czech Republic), Vienna (Austria), Budapest(Hungary), and we’ve crossed Germany and Switzerland to visit our customer’s warehouse in France. This is a god-given chance for us. The beautiful scene on the way is so amazing. Every summer TAGUTI will arrange trip to foreign countries. That makes chance to meet our customers far away and talk with them on our own. We always have passion to bring TAGUTI products into the world and spread TAGUTI spirit overseas.
Molybdenum wire is our main product. TAGUTI has a professional Research and Development department of wires. And there is an experienced production group to produce high quality molybdenum wires every day. The studies showed that the tensile strength hard of TAGUTI molybdenum wire is more than 2000N/mm². This is extremely higher than the national average.
You may be curious why we can achieve this incredible numerical value. Actually TAGUTI has invented cold drawn molybdenum wires early in 1997. After sustained effort and unflagging support of all staffs, founder of TAGUTI – Mr. Zhang has finally discovered another way make molybdenum wire thinner without heating process. Afterwards, every specifications of molybdenum wire could be produced with this cool drawn technology, eg.φ0.12mm, φ0.13mm, φ0.14mm, φ0.15mm, φ0.16mm, φ0.18mm, φ0.20mm, φ0.22mm, φ0.25mm.
In nowadays TAGUTI molybdenum wire is well known in native market. Even so many clients from other countries are attracted to purchase for their enterprise by TAGUTI’s reputation. There are so many brands of molybdenum wires in EDM market. And what makes TAGUTI stick out from the crowd? It all boils down to two important things: tensile strength and elongation. Cool drawn molybdenum wire has obvious advantages, like broken wire rate has been decreased; using cost has been reduced. Usually molybdenum wire of the same specification (0.18mm), tensile strength of other brands is between 5.0kg and 5.2kg, TAGUTI molybdenum wire is between 5.8kg and 6.0kg, has increased 15%. Most of manufacturers of molybdenum wire are varied in quality. And there appears a serious phenomenon, one stool of molybdenum wires is always not enough to the marked length. As everybody knows, only in China you can find molybdenum wire manufacturer, and there are a lot of factories, sometimes they will reduce price, there will be a blind competition between them. So when you are purchasing molybdenum wire for your company, never pick up a low price one. The quality is predictably not so satisfied.
Molybdenum is a kind of refractory metal, its melting point is up to 2610℃. It keeps body centered cubic crystal structure between room temperature and melting point. Molybdenum and molybdenum alloys are usually used to produce missile, engine, nuclear reactor etc. Because of its thermal stability, high thermal conductivity. Also molybdenum has extreme high modulus of elasticity, its coefficient of expansion is from about one third to a half of general steel products. Molybdenum does not react either acid or base at room temperature, it has excellent corrosion resistance. And density of molybdenum is low, it has high specific strength(strength/density). Molybdenum keeps structure while melting glasses, it has almost the same coefficient of expansion due to heat with glasses, so it can be used as reinforcing fiber material for mass metal glass. As reinforcing fiber material, people always pays close attention to molybdenum’s mechanical behavior under dynamic load or static load, but there are few reports about standards of mechanical property of pure molybdenum wire. Tensile strength and breaking strength of molybdenum wire concern diameter of wire. Though the diameter is shorter, the tensile and breaking strength is lower, generally there is no apparent effect of demension. And molybdenum wires of all diameters are broken down easily after plastic yielding. It means molybdenum has very poor plasticity. That makes it harder to manufacture molybdenum wire into different specifications. Not to mention the cool drawn technology. It requires more attention in production. To ensure molybdenum wire itself’s high ductility and tensile strength, TAGUTI has abandoned hot drawn technology. Because during heating process, molybdenum’s molecular structure has been changed more or less. TAGUTI’ goal is to keep the raw material’s features as we can. So that TAGUTI cool drawn molybdenum wire has been developed. As production has developed, at present it becomes our best seller in high speed EDM market.
According to technical research of TAGUTI Development and Research Department, there is 99.77% Molybdenum contents contained in TAGUTI molybdenum wire. So there is few affects in side of fragility. Molybdenum has cubic body centered crystal structure. The influence to plasticity of crystal type maily depends on numbers of crystal slip system. Though slip system of cubic body centered metal is not enough, anisotropy of it is extreme great. Meanwhile, cubic body centered metal owns looser structure than face centered cubic one. Especially transition metal, there often appears electron vacancy because electronic shell is not equally distributed. Atoms bond together directionally. The resistance of dislocation movement is high. Therefore, comparing with face centered cubic metal, cubic body centered metal has more fragility. Besides, there are carbon atom and nitrogen atom in molybdenum wire. These kinds of tiny atoms exist in the interstitial site of cubic body centered metal. The crystal structure has become aberrated asymmetrically. So that fragility of molybdenum wire has been increased more. There is another reason that causes brittle rupture of molybdenum wire, polycrystalline material has less plasticity than monocrystal molybdenum. And grain boundary strength of polycrystalline molybdenum is very poor.
The fatigue performance of molybdenum wire has an obvious bearing on different dimensions. As the diameter of molybdenum wire is getting smaller, the limit of fatigue performance of material is progressively reduced. On the condition of the same fatigue life, the less molybdenum wire’s diameter, the lower the fatigue strength.
After introduce of these studies, you can notice difficulty in molybdenum wire production. Especially during cold drawn technology, actually it’s not an economic way for manufacturers. Without heating process, molybdenum wire differs from heated one, is not so soft and not so easily to form. To produce thinner molybdenum wire is a big problem. Because once the raw material is broken down, the whole stool of molybdenum wire will be thrown away. Although the initial cost is much higher, after years of study, TAGUTI has developed stably and got benefits from efforts. At first TAGUTI is only an individual workshop of molybdenum wires, in nowadays, TAGUTI has become an industrial company and reformed, restructured, expanded scale twice so far. There are two parts of TAGUTI Group: Kelon Industry Research Institute has been founded in 1997. And the other one is TAGUTI EDM CO., LTD.
TAGUTI Group, which was founded in 1997, is one of the largest professional group company in the field of EDM consumables research, development, manufacture and sales with quite stable strength advantages in China. For over 17 years, TAGUTI has continuously developed at steady speed, the annual growth of the demand is about 15 percent, and always provided the best service to the mould manufacturing enterprises.
There are two subsidiaries of TAGUTI Group: Kelon Institute of Applied Technology and TAGUTI Filter Co. Ltd.
Kelon Institute of Applied Technology mainly produces and markets spare parts (such as brass wire, resin, molybdenum wire, electrode, guide wheel etc.) of WEDM, Sinker EDM and Small Hole Drilling Machine. And we’ve become nominated supplier of top brands of EDM industry(AGIE CHARMILLES, MITSUBISHI, SODICK, CHMER etc.).
TAGUTI Filter Co. Ltd. is a leading industrial filter supplier. Our company principally engages in manufacturing EDM Filter, Air Filter, Powder Filter Cartridge, which used in mould processing with good quality, high precision, long service life, competitive price and first class after-sale service. There are 8 professionals, constantly innovate and adopt advanced technology to carter to all needs of our clients. And we also keep a close business cooperation with international famous companies(AHLSTROM, H&V, 3M, TORAY etc.).
TAGUTI is not only a manufacturer of molybdenum wire, but also so many other edm consumables, such as edm filters, electrode tubes, etc. TAGUTI will step futher more in the future. To get closer and closer to Mann Hummel, TAGUTI has tried a lot of different papers. Finally, TAGUTI has decided to export German H&V paper exclusively. The fineness of the paper made in mainland or made in Japan is not satisfied. We have made a market research from the paper mill and have consulted with the skilled technicians. During the paper making process, flame plating is the most important, directly related to quality of the end paper. To complete the fpaper making, flame plating should be very even. Actually you can not find a high end paper mill in Chinese mainland. We have tried the national filtration paper. Though its cost is lower, we have not got good feedback as expected. Then we have exported filtration paper from Japan. The result has not been changed so much. Finally we’ve made a decision to purchase German H&V filtration paper, that is the same as Mann Hummel. That is the best filtration paper ever used. As we know, manufacturers from Korea also export filtration paper from German, but from another famous paper mill. We are preparing to purchase this kind of paper for trial. We never stop in development of TAGUTI EDM filters and consumables.
TAGUTI has opened up facebook and twitter, welcome to like us on facebook and follow us on twitter. You can get a surprising discount. I’m sure you’re not gonna miss it.
If you are interested in TAGUTI new trend, don’t hesitate to visit www.filter-supplier.com. Your
one and only source into the TAGUTI EDM WORLD. So see you next time!