What is Residual Stress?Generalized:
Residual stress refers to the material or workpiece in the processing process after the temperature and no external force and restraint, in order to achieve the balance of force exists in the object within the elastic stress. |
Residual Stress
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Project |
TST-VSR |
Heat Treatment |
Operating costs |
Cheap, cost per kilogram of 0.1 or less |
Expensive, cost about $ 30 or more per kilogram (at current price) |
Operation procedure |
Simple, only four hours of education and training |
The setting is simple, but it must be done according to the table |
Operating time |
Short, about an hour or so (depending on the size of the workpiece) |
Long, about several hours or even dozens of hours (depending on the procedures required) |
Side effect |
At room temperature operation, no decarburization, oxidation, rust and other troubles |
Material due to gas oxidation, resulting in rust and other troubles |
Material ingredient |
Room temperature operation, no element diffusion oxidation and other issues |
Decarburization, alloying elements to soften the material |
Material restrictions |
Non-metallic material restrictions |
There are metal material restrictions, such as: stainless steel |
Mechanical properties |
Does not affect at all |
Will soften the material, the intensity becomes low, causing corrosion concerns |
Processing deformation |
Completely without deformation, apply to the process of stress relief |
Will lead to deformation, not applicable to finished products |
Effect |
Stress relief can reach 40 ~ 70% or more, confirmed by stress measurement |
Only the annealing part can eliminate most of the stress, but other processes will produce stress (such as: normalization, quenching), and no measurement confirmed |
Product Name |
Material |
Purpose And Effect |
Aluminum die-casting mold |
SKD-61 |
Improve the accuracy, manufacturing accuracy, service life, reduce the mold when the secondary processing deformation |
Casting products |
FC,ADC |
Improve the accuracy, reduce the working hours and secondary processing of deformation, to prevent post-casting strain |
Plastic molding mold |
SKD-61 |
Improve the accuracy, manufacturing accuracy, service life, reduce the mold when the secondary processing deformation |
Forging machine tools |
SC |
Reducing the stress and the weld crack generated by the change in temperature drop after welding |
Automotive exterior sheet stamping die |
FCD |
Improve the accuracy, manufacturing accuracy, service life, reduce the mold when the secondary processing deformation |
Slide rail, machine tool base |
FC |
Improve accuracy, reduce processing steps, improve product accuracy, extend the service life |
Steel columns, steel structures, racks, Welded structural parts |
SS |
Improve the welding quality and service life, weld grain microstructure fine |
Turbine housing, turbine blades |
FC |
Improve the accuracy, improve the deformation before or after processing or prevent the strain after casting |
Large metal pipelines, Gas (oil) tank |
Mn alloy |
Reduce the weld bead and the bead structure is miniaturized |
Aluminum alloy skin |
AL |
Reduce fatigue strain, and improve the solderability, reduce the weld crack and weld the structure of the subtle |
ID:@pwu9077l
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service itemsStress relief works
V.S.R. Equipment V.S.R. Technology Stress verification Fixture design |
Taiwan Stress Tech Co.,Ltd.No.350, Shuangwen Rd., Dali Dist., Taichung City 41283, Taiwan (R.O.C.)
TEL:+886-4-24075063 FAX:+886-4-24075053 E-mail:service@tsvsr.com |
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