CAM-LEM - Lamination

This describes the lamination step of the CAM-LEM process, which is very important for creating high-integrity, functional engineering components.

Lamination

Inside the CAM-LEM machine, cross-sections of part material are stacked to form the three-dimensional model. These layers must be tacked together in order to preserve registration when removed from the machine. This is achieved using two different methods, depending upon the material used.

However, to achieve the high-integrity bonding necessary for optimum mechanical properties, additional steps may be required. A roller can be used to insure intimate layer-to-layer contact to maximize lamination efficiency by smoothing each layer after added to the stack. Also, a post-processing step may be necessary to complete the lamination process.

One example of the effectiveness of the lamination techniques developed is shown below. This multi-layer alumina ceramic sample showed excellent lamination, with no observable defects:

Below at left is an image of three as-stacked layers of a coated material. On the right is the same material after a post-processing step that completes the lamination. The coating diffuses into the material, leaving a seamless interface that provides the best possible integrity and resulting component strength.

Picture of three layers of material before lamination Three layers before lamination Three layers after lamination Three layers after lamination

Next: CAM-LEM Publications

Back to the CAM-LEM main document