Whiteboard Wednesday: Need to Know Mechanical Properties

Topics: Whiteboard Wednesday, Rotary Friction Welding

Posted by: Dan Adams on Mar 9, 2016 6:00:00 AM
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In rotary friction welding, a weld is created by rotating one part while keeping the other part still and applying the right amount of force between the two materials. Not only does this process quickly and efficiently bond two parts together into one, but it also creates what is known as grain refinement, which makes the new part just as strong as a single solid part.

The parent material has certain grain sizes in the pre-welded material. The mechanical and thermal working of the material affects  the grain size and orientation. This gain refinement process can improve the mechanical properties at the weld interface and in some cases, results in a stronger, more reliable material. In other cases, the refined grained material can be restored through post-weld thermal processing.

If you take a magnified look at a weld section from a typical rotary friction weld, you would see a reduction in the grain size near the weld zone. As you move further away from the weld zone, the grain size slowly increases back to the original parent material.

This is important because friction welding allows you to make a part that is the quality of a two-piece forging and get parent material properties as a result.

You Can Depend on MTI Quality

Don’t cut corners with low-quality parts to save money. MTI specializes in producing the highest quality parts from a wide variety of cost-effective materials and has the knowledge and ability to do so quickly and affordably. We’ll build a machine that makes your part, we’ll make the part for you, or we’ll help you make the part even better.

To learn more about friction welding, visit our website or watch how friction welding can be put to work for you.

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In 1926 our founder, Conrad Adams, may not have been able to visualize all the great things ahead for his family’s small tool and die company. However, he could see a bright future solving problems for his customers. Through hard work and a steadfast dedication to solving their most challenging manufacturing problems, the little company from South Bend, Indiana became the world-leader in friction welding technologies, providing engineered solutions from golf putters to jet engines. Today – nine decades and four generations later – MTI’s commitment continues with a solid succession plan and a vision for GREATNESS in place for the next generation.