Home     Kontakt     WIAP MEMV      Sprachen     English     News     Neumaschinen     Umbauten





Content WIAP® MEMV® 2018


The MEMV technology offers a few advantages for the user. Vibration stress relief on metal is alternative to stress relief annealing

The innovative procedure is utilised in order to reduce stresses in metallic components once again, e.g. the distortion as a consequence of welding processing operations


WB110 Report WM811 Chapters


WB120 Press releases


WB130 MEMV Brochures


WB140 Petitionen


WB150 Old literature about vibration stress relief











Wiap AG Ltd SA

Industriestrasse 48 L,

4657 Dulliken

Tel +41 62 752 42 60    

Fax + 41 62 752 48 61

Mail  wiap(at)widmers.info

Webseite    www.wiap.ch



Other websites   

www.widmers.info                  Retrofit

www.wiap.info                       new website cw

www.wiapwidmers.info          WIAP education

www.kfkok.com                    humanitarian association

www.metallentspannen.ch      Metal stress relief


MEMV Metal relax with vibration

Already decades ago, it was proposed that in the metal by the machining caused by shaking or vibration of the workpiece. For this purpose the workpiece is placed on a vibrating table or by means of a mounted vibrating device shaken or vibrated. This can take about 5 to 30 minutes. For larger and heavier workpieces were also important longer vibrational times are known, which is, however, different reasons. When vibrating, the residual stresses over the whole workpiece, so not only on the surface. The workpiece can be further processed. Of the tension release is the strongest at the beginning of vibration, however, effectiveness then flattens quickly. This procedure is often connected with several unknowns and requires some and knowledge or appropriate guidance. Although it has numerous advantages compared to the heat dissipation, namely low time and energy expenditure, avoiding heat distortion and of scale contamination of the workpiece, the use of the vibration relaxation often spared.


There are three types of residual stresses. The self-tensioning of the first kind is macroscopic and is produced thermally by the edge and the core of a workpiece after appropriate heating cool down quickly. With the residual stresses of the second kind comes by phase transformations or formation of excretions local microstructures. In the case of the residual stresses of the third kind dislocations are surrounded by a stress field.


A prerequisite for the proven and successful shape stabilization by vibration is a reduction of the macroscopic residual stresses in the workpiece, that is, the stresses of the first kind requires at least a local crossing of the flow boundary, which is influenced by various factors. They are called high residual stresses, which are superimposed by rectified load voltages or local excesses of load and residual stresses through notches, cracks or flaws.














WIAP VSR vibration relax




WIAP DM4C machine bed vibration relaxation WIAP MEMV Sweden hp/1cw




Stands Vibrating Wiap MEMV. Metal hp /cw




Crane with vibration relax   hp/cw



A very good alternative to: BONAL MEAT LAX, Formula 62, VSR Vibratory stress relief with vibration. New patented system from Switzerland WIAP MEMV, metal relax .. Unique Process reliability with vibration.



Home     Kontakt     Impressum     Seitemap     English     Patente     Neumaschinen     Umbauten