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Launch Of Taiwan International Machine Tool Show 2018

Launch Of Taiwan International Machine Tool Show 2018

TAIWAN: Taiwan International Machine Tool Show (TMTS), a machine tools and accessory procurement platform organised jointly by Taichung City Government and the Taiwan Machine Tool and Accessory Builders’ Association (TMBA) has been launched!

Boosting wp to 720 exhibitors in a five-day exhibition, TMTS is estimated to have attracted more than 80,000 visitors from Taiwan and abroad. The exhibitors will endeavor to secure orders amounted to as much as NT$10 billion.

Mr. Jui-Hsiung Yan, chairman of the Taiwan Machine Tool and Accessory Builders’ Association (TMBA), said that the theme of the 2018 TMTS is “Manufacture Linking • Activate the Future”. TMTS called on the stars of the machine tool and accessory industry to showcase Taiwan’s complete and diversified industrial supply chain. Major manufacturers such as TONGTAI, YCM, Victor Taichung, GOODWAY, AWEA, and HARTFORD, etc. will take a lead to demonstrate Taiwan’s most competitive machine models and main products, such as vertical and horizontal machining centres, lathes, milling machines or turning and milling centers, etc. Moreover, products that emphasise smart manufacturing elements such as COSEN’s smart Bandsaw CPC System for Industry 4.0, FEMCO’s Wheel Machining Automation, the intelligent lathes of SUNFIRM, and the Intelligent Linear Motor Drive Wire Cut EDM of CHMER are also expected to be highlighted in this exhibition.

In addition to the momentum of the whole machine factories, component manufacturers that have had a place in the global machine tool supply chain are equally invigorated. For example, besides the well-known linear guideway components, this year HIWIN will also present its successfully mass-produced Harmonic Drive. POSA is also geared to show visitors a complete spindle product line. TANSHING will display the 5-Axis CNC Rotary Table which is in line with intelligent automation requirements. HABOR will showcase energy-saving and environmentally-friendly industrial coolers. Products from other partners including index tables, tool magazines, cutting tools, toolholding & workholding devices, tools, measuring instruments will also be on display. It is also believed that TMTS can meet the needs of visitors and offer high-quality and customised services.

Besides diverse and innovative exhibition items, the Taiwan Machine Tool and Accessory Builders’ Association (TMBA) will organise purchasing conferences during the 2018 TMTS to help Taiwanese companies expand their overseas markets and seek business opportunities with foreign companies. TMBA will invite international buyers and exhibitors to conduct one-on-one negotiations, effectively matching international buyers and exhibitors, and thus making TMTS the best platform for the industry and customers to communicate with each other and grasp the market pulse.

Furthermore, during the show, not only enthusiastic exhibitors are fully committed to providing buyers from all over the world with complete and diversified manufacturing services, but TMBA will also cooperate with machine tool manufacturers to extend business opportunities from the exhibition venue to the factory. From November 7 to November 9, there will be eleven factories open to foreign buyers to visit, allowing customers to break the limit of the exhibition venue, and witness the production status and working attitude of Taiwan’s machine tools and accessory manufacturers. Customers will also be able to see the most authentic aspect of Taiwan’s machine tool industry.


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Hydrostatics—The Solution For High Precision In XXL Machine Tools

Hydrostatics—The Solution For High Precision In XXL Machine Tools

Does your customer have high requirements with regards to workpiece accuracy? One adjusting screw to guarantee a high accuracy is hydrostatic. Especially if you produce lot size 1 or large and complex workpieces, you have to avoid inaccuracy has to be avoided in the finished part, because if these parts are wasted, so is a lot of time and money. By Schiess GmbH

But what are the functions, advantages and disadvantages? References are also important for customers. Here you’ll find some answers to these questions.


Hydrostatic: An explanation | Image Source: Schiess

The contact surfaces of a guide or bearing are separated through a permanent oil film during the usage. The oil quantity is delivered from outside the machine. It is needed to generate and sustain the oil film. Therefore the height of the oil film is independent from the sliding velocity (one difference to hydrodynamic guides and bearings). How does it work? One side is equipped with pockets inside, e .g. the moveable gantry at our VertiMaster VMG. The oil is pushed into the pockets through supply lines. The distance between the pocket surface and the guide surface is named as the gap height h. The starting height h0 is about 10 µm to 60 µm (depends on the design and calculation of the pockets and the oil quantity). The pressure distribution is shown in the figure.

The pressure in the pocket pT is constant over the pocket and falls down to zero at the end of the pocket surface. If the oil aggregates are working, there will be a permanent oil film between the pocket surface and guide surface.

Advantages and disadvantages

The usage of hydrostatic guides and bearings has a lot of advantages:

  • Wear-free, therefore lower maintenance costs, higher machine availability and life cycle time
  • No change of the parameters of guides and bearings during the life cycle
  • High positioning accuracy
  • No start-up friction (pure fluid friction)
  • No stick-slip-effect
  • Excellent damping

The challenge—you have no advantages without disadvantages:

  • High manufacturing costs and challenging tasks to manufacture
  • High costs in case of additional aggregates

High Accuracy

In the opinion of Schiess GmbH, a German machine tool builder with over 160 years of experience, the usage of hydrostatic is a very important feature and advantages of our machines. They build up XL machines, aerospace machines and XXL machines (faceplate diameter till 12,000 mm, table length till 60,000 mm and longer, passage height till 8,000 mm). They offer a high product quality thanks to high manufacturing depth and quality (e.g. complete assembly in-house, air conditioned measuring laboratory, 100 percent measurement of the finished components) and high process quality thanks to extensive studies and support (e.g. preparation of stability maps as the basis for technology proposals (production optimisation).

Furthermore, there are some solutions to guarantee high precision manufacture without hydrostatics. Here you will see two of them.

Solution 1: Accuracy through process design

A machine tool manufacturer supports its customers during the selection of the right tools and process strategies. The reason: they don’t believe that they know everything better. But if they know the ideas and requirments of their customers from the beginning, they are better equipped to help at a later stage. Our application technology provide the complete process from the first ideas till the successful implementation in our instance.

Solution 2: Accuracy through design and usage of hydrostatic guides and bearings

Schiess XXL machines are equipped with hydrostatic guides in all linear axes. They are wear-free and keep the accuracy over the complete lifetime. The most important advantage is the huge damping. The faceplate is also equipped with a hydrostatic bearing.

Hydrostatic face plate | Image Source: Schiess

The combination of the guides and the bearing take care that the process forces are not transferred to the rest of the machine. No external vibrations disturb the process, thus the process is decoupled. This is extremely important for high precision finishing or the “last cut“ of a workpiece. Additionally, we perform static and dynamic finite element method for all cast parts and modal analysis for the complete machine. The aim is to find resonance vibrations and to shift them in uncritical areas.

These both solutions are parts of the modules to build a machine with high accuracy for years.

But if you want to use hydrostatic you have to solve two challenges:

  • The design:

The design of hydrostatic guides and bearings is a litte bit more difficult than „normal“ ones. But if you master the design it isn’t a problem anymore.

  • The manufacture:

Schiess uses finest milling by machine and scraping by hand. The scraping is an art that requires a great deal of experience and the workers have to fullfil these requirements.

These solutions should be offered only if these two challenges can be mastered. Otherwise, costumers will have a problem a few years down the road.

However, the hydrostatic is not the best solution for every machine‘s requirements. Therefore, Schiess manufacturers also do machining with “normal“ guides and bearings. For the XL machines, the ground machine comprises the components and the customer has the option to change to the hydrostatic version in (almost) all machines.

Arno Werkzeuge: Holder With Targeted Coolant

Arno Werkzeuge: Holder With Targeted Coolant

Arno is expanding its product range with through tool coolant holders integrated with precise coolants straight to the cutting edge.

The holder is available in shank sizes 12 x 12 and 16 x 16. The coolant inlet is individually placed, it can be inserted from the rear of the holder or the side. Various threaded connectors are also available. Efficient cooling of the insert cutting edge protects coatings which can be deteriorate due temperature changes. Swarf control is improved even on problematic materials, owing to secure and reliable machining.

Metal Forming Sector Positive In India

Metal Forming Sector Positive In India

India: The Indian Machine Tool Manufacturers’ Association’s (IMTMA) president P Ramadas said that the country’s machine tool industry is expected to grow around 20 per cent in 2017-18, and the metal forming industry is expected to grow at a compound annual growth rate of around 15 per cent in the next three years.

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