Hi-Performance Stainless Steel Edge Welded Bellows

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Edge-Welded Bellows Design


Bellows have been in common use since the turn of the 20th century. Orginally these were manufactured as tubing rolled with corrugations. However other production methods were soon developed including hydroforming and chemical/electro-deposited bellows.

Formed bellows are limited by the types of ductile materials used in their manufature. Electro-deposited bellows are generally made from a small selection of materials.

At the end of World War II, edge welded metal bellows were introduced. Essentially, these consisted of metal discs welded at both the inner diameter (ID) and the outer diameter (OD). With this type of manufacture : spring rates can be more precisely controlled and longer stroke ranges are achievable. These can be made from a wider range of materials, for practically any application!

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