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In stress, residual stress, found to add vibration in the first minute (Fig.). In the next two vibration playbacks (3 sec), the residual stress found to increase and decrease is not distinguished from this result, and it can be concluded that there is no residual stress for the time vibration.
Downhole, one is a fixed-end torsion arm (Fig.) between the lengths of the field welded (with welding). The welding was carried out without a 3mm line heat affected zone (heat) from the weld toe selected stress measurement was carried out at intervals, a total of 31 points of alphabet, respectively, the measurement of the 3mm MTEE position weld and the measurement line diagram.
The vibration frequency is constantly content at 25 Hz and the shear stress is applied to the specimen at different time intervals (column figure). The longitudinal residual stress line selection measures **before, after each step**, the residual stress drops by about 70MPa in the first two vibrations, even though this small part of the applied stress produces a significant reduction in the residual stress. The subsequent intervant vibration causes little or no reduction in residual stress.
The time effect was found to be an insignificant factor (Fig).
This shaft is spot welded, and the same shaft is carried out without a measuring line and direction measurement, similar to axis 4 (Fig. ). In this shaft, a small dynamic shear stress ( Frequency Vibration Varied ( shown). The 3mm line was selected for the survey and the measurement was carried out every 16 points of the alphabet using the 3mm MTEE residual stress specimen was measured for each step before and after the longitudinal residual stress measurement on the pull surface**, residual stress accumulation diagram.
The first minute of vibration shows a reduction in residual stresses of 25-35, and most of the measurements followed by vibrations at intervals of 2 minutes show little change in residual stresses (Fig.).
Similar to the first two slots, one is that the field welding has different degrees of shear stress on the solid vibration** (column diagram). At each stress level, the shaft oscillates for 1 minute. Selected line of longitudinal residual stress (graph), each step before and after the measurement**.
In stress, significantly reduce the residual stress (25-30mpa) observed along the survey line (Fig.). However, the addition of applied shear stresses in the 22, 28 and 38MPa did not produce any further cuts.
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The method is the specified limit size.
Considered standard. One method is the biggest way.
The large size is placed on top of the smaller size of the male part, and.
Instead, it's a real female character.
This method is ideal for small batches because it is possible.
The machinist can inspect the size of the part. In doing so, he.
The initial males with larger dimensions will be verified for the sum of segments.
Female characters of smaller size. Another method is the maximum quantity.
The method is the preferred production and quality control department. In this.
Method, specify a size, the larger number of bending amounts is always placed in small quantities, whether male or female part.
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