Prototype manufactured with a 3D-printer
Yoke is a part of a bicycle titanium frame that connects the rear chainstays and the bottom bracket. This part should be capable to withstand a load equal to 130 kg.
Problems and drawbacks
A conventional manufacturing method is titanium plates milling. A lot of material is wasted during processing, since. titanium chips are hardly recyclable. Two symmetrichalves of the part are milled and then o welded to obtain a single hollow part.
Various modifications of the part structure were developed:
EBM technology (Electron Beam Melting) was used for manufacturing. The material taken is titanium, production time is 2 days.