Question

In: Mechanical Engineering

You have to build a long cylinder that will be compressed at an angle slightly askew...

You have to build a long cylinder that will be compressed at an angle slightly askew from the long axis of the cylinder. That squeezing force will cause a Z-axis pancake stack (like most of our printed cylinders are) to shear apart at printed layers.
What modifications do you suggest to the print of this cylinder that can resist this compression force?​

Solutions

Expert Solution

Powder based inject 3D printing method is one of the most attractive free form techniques. It involves a sequential layering process through which 3D porous scaffolds can be produced from computer generated models. 3D printed products are controlled by the optimal build parameters. From the studies it proved that printed cylinders are having more ability to compression than the injection moulded parts.

The calcium sulphate based powders were used for porous scaffolds fabrication. The printed scaffolds of 0.8mm pore size, with different layer thickness and orientation were subjected to depowdering step.

The effects of four 1.layer thickness

2.printing orientation

3.physical and mechanical properties of printed cylinder are observed that the compressive strength, toughness and Young's modules of the cylinder with 0.1125 and 0.125 mm layer thickness were more than others.


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