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Bolting by Design

Presentation at Maintenance Solutions Seminar
Indianapolis, IN


AIST-Meeting-9-21-15

Held at the Westin Indianapolis and sponsored by the AIST Maintenance and Reliability Technical Committee, the 2015 AIST “Maintenance Solutions – A Practical Training Seminar” featured 28 events. Presented by industry leaders and subject matter experts, topics covered ‘Best-In-Class’ practices on Reliability, Hydraulics, Maintenance, Bearings, Lubrication, and Assembly of Bolted Joints.

Attended by 78 members of the Association of Iron and Steel Technology from the US and Canada, the guests were from a diverse background with a common interest in steel making.

Presenting for Valley Forge & Bolt, Jay Palmer educated and informed the “Bolting by Design” session attendees on the importance of assembly, as the often overlooked and frequently most critical aspect of insuring a reliable bolted joint. By covering the quality checks involved in all the steps of fastener design and manufacturing, it is quickly evident that conventional assembly processes have the least amount of controls with the fewest measurables, for proper tension when using methods like torque. Recognizing this common deficiency in assembly methods, the ASTM created F2482. F2482, the “Standard Specification for Load-Indicating Externally Threaded Fasteners”, takes bolt load to a higher level by creating a measurable quality standard for assembly that equals the manufacturing processes to make the bolts. To qualify for F2482, a fastener must provide a means to verify the desired clamp load upon installation and in service.

The group was very intrigued with load indicating technology as it uses elongation to precisely determine load. The need for accurate tensioning for safety and reliability is obvious and the attendees embraced the concept whole-heartedly. Numerous questions and positive feedback followed, accompanied by heads nodding in agreement. Follow-up ‘lunch and learn’ presentations are being scheduled for maintenance crews at mills.

To learn more or to get your copy of the presentation click here.

 

 

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Important Announcement

In response to recent public health concerns and multiple requests regarding our ability to fulfill customer orders, Valley Forge does not currently foresee any negative impact from the Coronavirus (COVID-19).

All parts manufactured at Valley Forge are made with U.S. domestic steel and our raw material supply for this and other materials / components has not been affected. We will be maintaining continuous communication with our suppliers and will maintain an ongoing dialogue to ensure there are no disruptions in our supply chain.

 

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