Hill Engineering Blog

Case Study: Aluminum forging quench modeling

Aluminum alloy heat treatment is a three-step process designed to achieve the desired properties. The process involves: 1) solution heat treatment (SHT) at an elevated temperature below the melting point, 2) quenching in a tank of fluid (e.g., 140-180°F water), and 3) age hardening. While providing good properties, the heat treatment has the negative side effect of creating bulk residual stress and distortion.

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Happy 20th birthday to the contour method

Today marks a major milestone in the field of residual stress measurement. The contour method, one of the most useful and advanced residual stress measurement techniques, was first successfully implemented on this date (August 16th) in 1999 by Mike Prime at Los Alamos National Laboratory. The most significant feature of the contour method is its ability to generate detailed two-dimensional residual stress maps like the one shown below. Please join us in wishing the contour method a very happy 20th birthday! Continue reading Happy 20th birthday to the contour method

Machining process simulation services

Hill Engineering’s machining process simulation service reduces uncertainty in machining planning and improves machining processes. By providing results from validated models, our services support the decision-making of contract machining vendors who want to efficiently produce high-quality parts and OEMs who want to maximize the productivity of their supply chain. Continue reading Machining process simulation services

Renan Ribeiro wins Henry O. Fuchs Student Award

Hill Engineering would like to congratulate Renan Ribeiro for winning the Henry O. Fuchs Student Award. Established in 1991, this award recognizes a graduate or recently graduated student that is working in the field of fatigue research and applications. The purpose of this award is to promote the education of engineering students in the area of fatigue technology. Continue reading Renan Ribeiro wins Henry O. Fuchs Student Award

Case Study: Multi-step machining distortion modeling

Distortion of parts during the machining process is a significant problem faced by many machining vendors. This phenomenon typically results from the release and redistribution of residual stress in the material once the part is unclamped from the machine table. When not accounted for, machining distortion can lead to out-of-tolerance parts that either require reworking, or have to be scrapped. Continue reading Case Study: Multi-step machining distortion modeling

#HillEngSTEM Summer Challenge

Summertime is just around the corner and we at Hill Engineering are always looking to engage our followers with fun and interesting information about engineering and residual stress. This summer we’re going to host the virtual Hill Engineering STEM challenge – a series of fun activities to demonstrate your engineering intuition and creativity. Participate on your own or with your family to compete for some cool Hill Engineering prizes! Continue reading #HillEngSTEM Summer Challenge