815-847-7722

DID YOU KNOW THE ASSEMBLY OF YOUR PRODUCT COULD BE A QUARTER TURN AWAY FROM A MAJOR RECALL?

PEAK INNOVATIONS ENGINEERING HAS THE HIGHLY TECHNICAL TEAM TO DESIGN, TEST, VALIDATE, AND ENHANCE THE BOLTED JOINTS WITHIN YOUR PRODUCT APPLICATION.

Joint development and testing is all we do, so we do it better than other internal and external options. Why consume your resources when we can take care of it for you quickly, definitively and cost effectively?

WHY OUTSOURCE JOINT TESTING?

Peak innovations Engineering is an ideal choice for joint testing and development. By relieving your engineers of joint testing, they can focus on engineering improvements increasing revenue and sales. Our experience and expertise allows us to optimize joints, propose cost reduction of labor and material and troubleshoot poor yield.

WHY USE PEAK?

Peak innovations Engineering offers independent third-party fastener, joint or equipment testing. Our in-house lab accommodates immediate testing of proposed designs or changes. Peak’s specialized testing can optimize your process parameters including; torque, force, time, etc. Many of our tests can be performed at the customer’s location if requested.

Fastener Loosening in Devices

Apr 8, 2021 | Blog Posts, Fastener Loosening

A fastener is a hardware device that mechanically joins or affixes two or additional objects collectively. Generally, fasteners are utilized to make non-permanent joints, which will be removed or dismantled without damaging the joining elements. Welding is an instance of making permanent joints. Other alternative methods of joining supplies include things like crimping, welding, soldering, brazing, taping, gluing, cement, or the use of other adhesives. Force may also be used, including magnets, vacuum (like suction cups), or perhaps friction (like sticky pads). Some types of woodworking joints make use of separate internal reinforcements, for instance, dowels, which in a sense may be deemed fasteners within the scope in the joint program, even though on their very own they’re not general-purpose fasteners.

Quite a few joint applications only see static loading or external loading. These types of loading are erratic and not exceeding the strength from the fastener, which holds points with each other. When tightened, these joints seldom loosen. But you’ll also find joints that see cyclical loading and, in some circumstances, pretty high-frequency cyclical loading, which causes vibration. Even when the load isn’t pretty high, when you use incorrect fasteners, loosening can take place. Threads of a fastener are ramps that wrap around the shaft inside a helix. Tightened fasteners depend on friction to maintain from ‘sliding down the ramp’ or loosening. Friction is vital not simply within the thread flanks of a fastener but additionally in the bearing surface. Too much friction within a joint and we don’t produce enough clamp load, but too tiny friction can cause loosening.

Some joints are extra prone to loosening under vibrational forces: soft joints can’t create adequate clamp loads to stretch the fastener without damaging the mating surfaces and rapidly bolted joints, which may assist larger clamp loads, but usually do not give the bolt adequate length to stretch.

The Causes of Fastener Loosening

When a fastener becomes loose, it can result from a reduction within the tightening force (the bolt preload), which has two causes: fastener non-rotational looseness and fastener rotational looseness.

Fastener Non-Rotational Looseness

The result of initial put-on Fatigue is a consequence of uneven put-on inside the connecting components.

Principal countermeasure: A conical spring washer getting a spring counterforce.

Sinking Looseness

Lead to: Plastic deformation across the seating surface.

Key countermeasure: A sturdy, rigid flat seating that doesn’t sink.

Fastener Rotational Looseness

Trigger: Cyclic loads in the bolt axial direction, bolt transverse path, and bolt axial rotation path.

Principal Countermeasure: Parts that protect against looseness.

Why Invest in Joint Testing to Decrease the Possibilities of Fastener Loosening

The sliding in the nut or bolt head about the joint can cause fastener loosening. Vibrations, movements or other strain on the item more than time can bring about fasteners self-loosening.

THE PROOF IS IN THE REPORTING!

Critical analysis of the testing data and subsequent reporting is our brand signature.

Read More >>

Experiencing Joint Failure?

We can design, test, validate, and enhance new and existing bolted joints.

Read More >>

 

NEED MORE TESTING CAPACITY?

We partner with OEMs demanding increased joint testing capacity.

Read More >>

Get Fastener Help Now!