Questions tagged [rivets]
14 questions
7
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1 answer
Do solid rivets fully fill the holes when installed properly?
Suppose I have two parts with holes aligned and I have to install a solid rivet into the "combined" hole.
Clearly the rivet diameter must be slightly smaller than the hole diameter, otherwise it simply won't fit. So I heat this slightly smaller…
sharptooth
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5
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1 answer
Aluminum vs Steel rivets/fasteners in a high vibration environment
What are the relative pros and cons between aluminum and steel fasteners when riveting together sheet aluminum (50XX or 60XX) when high amounts of vibration are anticipated? Assuming that the usual guidelines for sheet thickness, hole size and…
Green
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5
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2 answers
How is steel tempering addressed when installing pre-heat rivets?
AFAIK when you heat up a piece of steel to high temperature and let it cool down slowly (as opposed to shock cooling by say submerging it into water) steel gets softer - that's called tempering. Steel getting softer means it can bear less load…
sharptooth
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5
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1 answer
Are stress concentrations a concern when replacing rivets with high strength bolts?
A common method of repairing old riveted structures is to replace any damaged rivets with new high strength bolts.
When this is done, the new bolts are typically installed like they would be on a new structure which results in a bolt pretension. My…
hazzey
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4
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2 answers
What's the difference between structural pop rivets, and non structural?
It may be a simple or obvious question, but I'm confused what's changed between those.
That would be an example of a non structural rivet, does the bottom half of the mandrel steam inside the hollow rivet fall out, unlike structural where it…
MatthewSilus
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3
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1 answer
Rivet pattern management in Fusion 360
As a follow up to this question, I have a question about rivet hole management in Autodesk Fusion 360.
I've got two pieces, a flat sheet of aluminum and an inverted hat channel that I want to rivet together. The easy (and naive) way would be simply…
Green
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3
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2 answers
Aluminum for an Ejection Seat Replica
I love ejection seats and the flying contraptions they usually reside in. In fact, I like them so much that I want to make my own, despite my profound lack of training and inexperience with mechanical engineering in general. After doing a little…
Green
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Shear and normal stress in rivets
Hello everyone :) This is my first post here so please excuse any of my mistakes.
I’m having some difficulty with solving the following problem. Let us have a thin-walled square pipe exposed to bending, torsion and stretching (picture below). On…
EngineerInProgress
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1
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1 answer
How to install multiple pop rivets
I'm looking to rivet two sheets of aluminium together with the pop type. I've researched that 3.2mm rivets should go into 3.3mm holes. (Who has a 3.3mm drill bit?) That's not a lot of clearance, which I understand is part of the concept to allow…
Paul Uszak
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Calculating riveting force
How do you calculate the force required to form a tubular riveted joint? Assume the tubular rivet's ID, OD, and initial and final length and diameters as variables.
Kaushik
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0
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What type of rivet is this?
This is a pivot point on a linkage in my coffee table. It appears to be a rivet with a tail that was pressed with a cross-shaped punch to widen it. I haven't see something like this before. Is there a name for this? What is the benefit of…
Ryan
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0
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Stress concentrations around rivets in compression
The stress concetration factor for an unfilled hole is around 3, but it decreases when a rivet is present. What factor can we expect for a hole with a rivet in it in compression?
Alex
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Aluminum rivet used to join stainless steel and aluminum sheet
I am using Aluminum pop rivets to join stainless steel and aluminum sheet together. I am aware of the galvanic corrosion risk in this situation. Are there any other risks the joint may face over time due to material mechanical properties differences…
0
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1 answer
What type of fastener / rivet is this please?
I think I may have worked this out but I would love it if a real engineer could confirm it please? Is the fixing shown in the photos a shoulder rivet? Semi tubular? For the record the pictures show a collapsible music stand, the metal legs shown…
JCP
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