How To: Assemble High Quality Parts
Ensuring Clamp Load – Highly Effective Assembly Technique
If you can’t be certain there is clamp load – you could be making bad parts. The purpose of mechanically joining parts is achieving clamp load in a joint. It’s no simpler stated than that.
We begin by understanding:
- The type of Joint
- Characteristics of Joining Process
Joints can be “Hard” (think: metal on metal), or “Soft” (think: cork gasket between 2 pieces of metal). In either case, the parts must be joined consistently and correctly with the proper amount of clamp load to hold the parts together.
Question: How is this achieved?
Answer: Using the correct process.
First, let’s look at the incorrect process:
Imagine installing a bolt into a threaded bore with burrs present. Maybe the threads are not cut deep enough. Maybe there is debris in the thread. You may tighten the bolt to the correct torque, but is the bolt correctly seated? Is it producing clamp load? Perhaps not.
We, at Weber, call this a “Head High” condition.
- Torque reached? Yes.
- Angle conditions met? Maybe or maybe not.
- Installed to the correct depth? Most definitely not.
The answer is using the correct process. Join your parts correctly using:
There are 3 Dimensions to a correctly installed fastener.
- Torque Reached? Yes.
- Angle conditions met? Yes.
- Depth reached? Yes.
By measuring the installed position (or Depth) of a fastener while applying the correct amount of Torque in the correct amount of Angle, we can say with certainty that our joining process is complete.
Weber uses an Analog Depth Sensor like the one pictured here.
(Note the blue sensor attached to the right side of the spindle body).
Combining this sensor with patented magnet technology mechanically integrated into the bit stroke internals, Weber is capable of reporting depth to an accuracy greater than the tenth of a millimeter.
This method proves to be the most accurate in the joining industry.
Now you can be confident that you are producing good parts.
Lower your Risk. Use Weber Analog Depth for 3-Dimensional joining.
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