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Damage Of Ultra-thin Turbine Blades

Oct 30, 2017

Before use should confirm whether the saw blade has the breakage, if has the breakage, forbids to use. When assembling, the motor shaft and saw blade center hole Germany cooperate, the error must be less than 0.1mm. Note that the direction of the arrow indicated on the saw blade is consistent with the direction of the tool being rotated.Ultra-thin turbine blades 

When cutting, please do not apply side pressure and curve cutting, into the knife to smooth, avoid the blade impact contact the workpiece, in order to avoid danger. Dry-cut, do not carry out long time continuous cutting, so as not to affect the life of the saw blade and cutting effect, wet slice cutting, should add water cooling, beware of leakage.Ultra-thin turbine blades

Experts suggest, after the saw piece is installed, should be idling a few minutes first, confirm no swing or beat, after the grinding wheel or refractory brick on the first try to cut a few knives, and then normal work effect is best. If the sharpness of the saw blade is not enough, please use silicon carbide to sharpen the blade. Cutting Confidential has a safety shield, operators must wear safety clothing, glasses, masks and other protective supplies.Ultra-thin turbine blades

Many turbine blades for aero engines and other high-performance systems are hollow, allowing the radiator to circulate in the blades. The eccentric core in the casting process, the machine has the problem or the normal wear during the operation may cause the blade wall thickness to be lower than the acceptable lower limit value. If the blade wall thickness is measured using a mechanical method, it is usually impossible to destroy the blades. However, using the appropriate probes and instruments, the ultrasonic method can be used to complete the measurement without destroying the blades.Ultra-thin turbine blades

Both the delay probe and the immersion probe can be used for blade measurement. The delay probes are usually easier to place on the blade surface, while immersion probes usually require a monitoring waveform to determine the probe alignment. However, the curvature of the turbine blades may make the delay probe not properly coupled to the concave side of the blade.Ultra-thin turbine blades

Measurement mode: Using delay and immersion probes, thickness measurement can use Mode 2 (interface wave to first echo) or mode 3 (Echo to echo after interface Wave). Mode 3 provides better thin material resolution than mode 2, which is possible only if the measured points on the turbine blades produce multiple echoes.Ultra-thin turbine blades