Makes Process More Reliable

AOD, India makes ophthalmic devices. The ophthalmic incision knife that they make has a SS blade that needs to be bonded on to PC handle. AOD was using a 2 Part epoxy for this process however it was time consuming and depended largely on operator skill. Customer wanted to increase production to 1.2 million units / annum and the process time with a 2-k epoxy was a constraint. Using a 2-k epoxy involved mixing both parts and was time consuming. The mixed epoxy also had limitations on pot life and resulted in wastages of mixed epoxy

Strengthens Assembly, Prevents Moisture Ingress

Train bogie wheels are assembled utilising a heavy interference fit of 0.001” per inch of axle diameter, (typically 0.009” for a 9” diameter shaft). In addition, press-on tonnage of between 65-110 tonnes must be achieved and documented to ensure optimal assembly strength.
This can be an extremely difficult task, and the consequences of poor assembly can be expensive or even catastrophic. Therefore if metal pick-up occurs during assembly, the components will be scrapped, and if the tonnage is not achieved within specification, the wheel and axle must be separated and re-matched.