Advancement in Wire EDM for aircraft engines

Released on: May 25, 2015, 2:14 pm (EDT)
Industry: Industrial

Seattle, WA, May 25, 2015 -- /EPR NETWORK/ -- Upgrades in wire electric discharge machining (EDM) technology has made it possible to machine Inconel alloys for crucial aircraft components. EDM has become the recommended technique for cutting turbine disc, a demanding need that underlines the advantages of this machining technique.

The shape is dramatically similar to a fir tree that appears to comprise of an array of branches that develop slightly on both sides, providing a tapered look feature of an evergreen–thus, the forename for turbine disc slot shape and the similar configuration on the turbine blade’s core. In shape between core and slot offers space for thermal expansion while keeping the blade against the centrifugal force while the rotation of discs at the large pace such as 10 x 10(3) revolution per minute.

Incising the fir tree design on the both sides of the disc and blade core has a challenge for the producers of jet engines. A latest engine consists of around 40 turbine discs and each disc sustains 24 to 200 blades. In order to create several slots on every disc, it needs a capable and efficient production technique which delivers an economical production of aircraft engine.

Wire EDM offers several advantages such as versatility, high accuracy and cost-effectiveness. Although the turbine engines are bigger and more massive than the samples usually made on the wire EDM apparatus, there are several other construction based factors that are not usually occurred in the common wire EDM operations.

A particularly patterned wire EDM for slicing fir tree designs in the engine discs includes attributes likes in-process probing, tailored power production settings and analyzing software that is essential for aerospace applications.

However this enthusiastic system is made for aerospace engineering, it is nonetheless individually made for disc construction in jet engines. It is easily implementable in energy and power production plants.

The principle factor of fir tree application is that is assures the authorization of wire EDM samples in the production of jet engines. The performance of generator creates invisible white layer that proves its capability to be used by engine producers. The white layer includes microscopic level thin sublayers of the sample that are altered on metallurgical level through the extremely localized and intense heating of the EDM procedure which may flake off the white layer resulting in the damage of the component. The automated power generators have facilitated wire EDM to prevent the generation of white layer. Hence it results in providing more accurate and regular control of the spark production. Through this EDM is capable to process aerospace alloys like titanium and Inconel. Overall the purpose is to develop electric pulses to quickly achieve the required temperature limit that remains for sufficiently longer time for material removal to take place before the sample is melted. Instead the sample is cooled in the dielectric solution and rinsed as hard particles with only a slight possibility to combine onto the sample surface.

Wire EDM is also become possible to use for the materials of identical size, weight and complexity in the hard sample materials. These materials include the parts of titanium and high nickel alloys that are used in the energy and electricity production.

Contact-Details: Heanjia Super-Metals CO., Ltd/Jialiang Zhao/3002 harvard ave e, seattle washington USA 98102, 12068907337

WORD not available PDF not available PRINT not available

Back to previous page
Home page
Submit your press release