Fulling

Walken is the deformation of materials by mechanical processing such as kneading, pushing or pulling. For substances it is used as willed manufacturing processes. For tires of rubber it causes losses due to warming.

Word origin

The word itself derives etymologically from Old High German walchan, knead ', from Old Norse valka lug around '. The Walking with your feet in cloth production was also known in medieval England. A walker walker was in English also, which developed also the identical name. In English, it developed into the meaning of to walk, kick with their feet ' to walk '.

Leather processing

Walking in leather processing is an operation, are clamped at the wet leather over a model in order to bring them into a certain shape. Such a model is, for example, the bars of the shoemaker and the plaster model of the orthopedic technician for orthoses or prostheses. You need to Walk nails or Täckse, a small hammer and a Walk pliers.

For clamping of leather, the nails are driven into small intervals so that the leather is stretched tightly around the model. In addition, one avoids a careful fixation that the retaining pins are pulled out from the model. The leather takes place during drying something together and tightens it and would lose its shape. If after walking the leather dried, it retains its shape. The nails are removed and cut and sewn to the leather.

Cloth and felt making

Become finished fabric fulled, caused by entanglement of the fibers in the fabric called Walk substances. Walk This process was carried out in fulling mills since the High Middle Ages. It is in this case taken under running water with hammers on the material.

The more original way to walken non-woven wool fibers is to follow the felt in cloths and rolling to knead. This method is still used today in the Central Asian steppe peoples by large rolls of felt of horses are dragged around.

Metallurgy

Walking in metallurgy is the repeated bending of sheet metal on rollers, to make them pliable for further processing.

Tires of a vehicle,

Tyre, in particular those made ​​of rubber, such as solid rubber or pneumatic tires to be deformed during the movement under load in the bearing surface in cross-section. Later in the rolling process, the cross section normal. In this case the material is flexed and heated by the resulting frictional heat. The work done here is called fulling.

The force required for the flexing of the tire is the largest component of the rolling resistance acting against the drive force of the vehicle, thus increasing the fuel consumption. Furthermore, the contribution thereby made to heating of the tire can reduce the aging resistance, fatigue strength and the (long - or short-term potential ) speed.

An increase in air pressure in the tire, the choice of a rubber compound with less internal friction in the frequency range of the excitation or suitable constructional measures reduce flexing and therefore the flexing.

• Manufacturing process
• Method (textile processing)