Form of aggrandizement of special gush bolus

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Wall and inside aperture aggrandizement is become inside the spare parts that the deepness of aperture is more than bore diameter, unsuited equipment of aggrandizement of the wall outside using. Need to use a kind of special tape but explore enters type spray gun or deflection implement equipment of aggrandizement of lumen gush bolus, in closed circuit type programme controll falls undertake wall aggrandizement. What show on the graph is pair of diameters for 0.

Wall of the cavity on eddy turntable has the jet-propelled engine of 096 explore enters aggrandizement of bolus of deflection type gush. Such wall aggrandizement also applicably at the following workpiece: - aperture of long screw cap - hydraulic pressure crock - machine carefully bridge - artesian well canal is provided - airscrew oar leaf - take axis of lubricant Kong De - compressor and chamfer of eddy turntable lamina 2 aggrandizement 2 aggrandizement is in sheet, can make fatigue life can be lengthened normally 300% to 500% , taller even. Undertake aggrandizement 2 times, can make so the effect of aggrandizement times doubler, 3 times or more multiple increase. 2 the purpose of aggrandizement is to increase spare parts surface layer to approach stress level further, spare parts most surface layer area also is fatigue crackle the place that easy happening. Pass by force squeezing ramming surface layer, can prevent exhaustion to crackle is formed and be extended further. For example: Undertake aggrandizement 2 times to wire of chromic silicon spring steel, its surface presses stress level to be changed than Chan Cijiang increased 30ksi again.

2 aggrandizement, it is to use makings of larger size bolus to undertake to wanting aggrandizement place first normally the first time after aggrandizement, change again be opposite with makings of lesser dimension bolus same position, undertake aggrandizement the 2nd times with lesser intensity. After 2 aggrandizement, can be in on aggrandizement foundation, reduce exterior surface roughness, improve exterior light to rectify a gender, reduce stress concentration, be helpful for increasing fatigue strength. Press aggrandizement to press aggrandizement action to be able to guide beforehand beforehand stress, rise further thereby fight fatigue craze function. 2 aggrandizement is in the spare parts most surface layer undertakes fatigue attribute is improved, press aggrandizement to produce more to press stress in whole pressure layer beforehand. Undertake pressing aggrandizement beforehand, the spare parts needs to be before aggrandizement, bring to bear on first to its after with its the job enlists in army one, get load action is similar directional outside force. Extension spring is about to undertake drawing first, stage clip is about to undertake compression first, and transmission shaft must inflict beforehand torsional. This can offer to work with spare parts future be handed in below condition change load action is caused pull stress contrary and retrorse the biggest (leftover) press stress. The spare parts throws ball / before gush bolus aggrandizement, bring to bear on inside range of its flexibility limit force of carry on one's shoulder of a preload, generation of ground of can bigger limit is the largest press stress. Hit spare parts surface when aggrandizement bolus makings, surface layer can carry on his shoulder or back as a result of this preload force, and succumb further. Try when metallic surface when resile, meeting change is this additional yield force to press stress additionally. The preload carry on one's shoulder of action is more, the remains of generation presses stress more. CNC Milling CNC Machining