Hill Engineering Blog

AS7045 – Residual Stress Measurement and Classification, Metallic Structural Alloy Products and Finished Parts

by Camille Fowler

A new Aerospace Standard, AS7045 – Residual Stress Measurement and Classification, Metallic Structural Alloy Products and Finished Parts, was recently published by SAE International. Hill Engineering was actively involved in the development of the standard along with many of our collaborators in the aerospace industry. AS7045 offers tremendous potential to revolutionize the management of residual stress during metallic material procurement.

We never got out of style! Hill Engineering Team Members take on the Eras Tour

by Robert Pires

The anticipation had been building for months, and finally, the day arrived. Robby, Camille, and Ryan, members of the Hill Engineering team, embarked on a journey through time as they attended the Taylor Swift Eras Tour concert in Santa Clara, California.

Robby, Camille, and Ryan hold a Taylor Swift Eras Tour tapestry while standing in front of a red brick wall. — No Cruel Summer here! Robby (left), Camille (center), and Ryan (right) take on the Eras Tour at Levi’s Stadium!

Overcoming Challenges in Residual Stress Measurements on Small Test Specimens Using the Slitting Method

by Ryan Tucci

When it comes to measuring residual stress in small test specimens, precision is paramount. The slitting method is well suited to this application due to the high accuracy of wire EDM machining. However, this method is not without its challenges, especially when applied to very small test specimens, such as the 0.022-inch diameter wire we recently measured.

Hill Engineering Acquires New SFX Laser Engraver

by Robert Pires

Hill Engineering has recently acquired the state-of-the-art JPT MOPA M7 Laser Engraver with a 175x175mm lens and an 80mm Rotary Axis. This strategic investment will improve our laboratory capabilities, enabling us to deliver unparalleled results to our clients!

A block of aluminum undergoing a laser procedure with various measurement instruments present. — The JPT MOPA M7 Laser Engraver with a 175x175mm lens and an 80mm Rotary Axis

New publication: Effects of high‑energy laser peening followed by pre‑hot corrosion on stress relaxation, microhardness, and fatigue life and strength of single‑crystal nickel CMSX‑4® superalloy

by Camille Fowler

Hill Engineering recently published new collaborative research in the International Journal of Advanced Manufacturing Technology titled Effects of high‑energy laser peening followed by pre‑hot corrosion on stress relaxation, microhardness, and fatigue life and strength of single‑crystal nickel CMSX‑4® superalloy and appears in International Journal of Advanced Manufacturing Technology. The abstract text is available here along with a link to the publication.

Presentations at TMS 2023 Annual Meeting & Exhibition!

by Adrian DeWald

Hill Engineering recently co-authored presentations at the TMS 2023 Annual Meeting & Exhibition in San Diego, CA on March 19^th through the 23^rd. The TMS Annual Meeting & Exhibition brings together more than 4,000 engineers, scientists, business leaders, and other professionals in the minerals, metals, and materials fields for a comprehensive, cross-disciplinary exchange of technical knowledge. The abstracts for the presentations that we co-authored are copied below.

New Vlog: How To Apply A Strain Gage

by Robert Pires

Strain gages feature in a large portion of the residual stress measurements we perform at Hill Engineering, which is why we pride ourselves on our ability to correctly choose and apply strain gages to fit any measurement needs.

Publication alert – Multiscale framework for prediction of residual stress in additively manufactured functionally graded material

by Adrian DeWald

Hill Engineering recently published new research with collaborators from around the world including South Korea, Australia, China, and the United Kingdom. The work is titled Multiscale framework for prediction of residual stress in additively manufactured functionally graded material. The abstract text is available here along with a link to the publication.

Hill Engineering’s DART issued second US patent!

by Robert Pires

Hill Engineering has been recently issued its second US patent for the DART™ measurement system. This updated device offers improved residual stress measurements within small-diameter pipe applications, allowing for more accurate analysis in both in-laboratory and non-laboratory settings.

New Case Study – TrueSlot®

by Robert Pires

Our latest case study is up and it’s all about TrueSlot®, our innovative technique for measuring near-surface residual stress!

A solid model block with a long but thin slot cut out of the top. — A model of a completed TrueSlot® method measurement.