How to Calculate Torque in PSI for a Welding Application?

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In summary, the customer has a print calling out for a minimum of 250 ft-lbs on a weld used to mend a cylindrical feature on a formed/stamped part. The part is constrained with pins into a fixture and the other end is pushed up with a 0.75" cylinder. An air compressor set at 50 PSI (previously converted) is used and the length of the bar is 1 ft. The part is on a rotational axis and there is a question about how to convert the 250 ft-lbs to PSI.
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Aldumoul
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The customer's print calls out 250 ft-lbs mininum on a weld. There was a gage built some time ago... The weld is used to mend a cylindrical feature after forming/stamping the part. There is a bar inserted into the part (part is constrained with pins into a fixture). And the other end of the part is pushed up with a 0.75" Cylinder. An air compressor is set at 50 PSI (someone previously converted to this). The length of the bar is 1 ft (close enough). The part is obviously on a rotational axis. Any ideas as to how one would set up a formula to convert the 250 ft-lbs to PSI?

PART-------------------
(bar) |---|
|_____|
(Cylinder)
 
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My "illustration" didn't turn out correctly. The cylinder is at the end of the bar.
 

FAQ: How to Calculate Torque in PSI for a Welding Application?

What is torque?

Torque is a measure of the force that causes an object to rotate around an axis. It is a vector quantity, meaning it has both magnitude and direction.

What is PSI?

PSI stands for pounds per square inch, and it is a unit of measurement for pressure. It measures the amount of force exerted per unit area.

How do you calculate torque from PSI?

To calculate torque from PSI, you will need to know the distance from the axis of rotation to the point where the force is being applied. Then, you can use the formula torque = force x distance. Make sure to convert the PSI measurement to newtons per square meter (N/m^2) before using the formula.

What are some real-world applications of calculating torque from PSI?

Calculating torque from PSI is commonly used in engineering and physics, particularly in the design of machines and mechanical systems. It is also used in industries such as automotive, aerospace, and manufacturing. For example, torque can be calculated from PSI to determine the force needed to tighten a bolt or to measure the power output of an engine.

What are some factors that can affect the accuracy of calculating torque from PSI?

Some factors that can affect the accuracy of calculating torque from PSI include variations in the material properties of the object, frictional forces, and measurement errors. It is important to carefully measure and account for these factors in order to obtain an accurate torque calculation.

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