One Minute Mentor: Mechanical Shock

March 3, 2026
Source: ASM International

One Minute Mentor: Mechanical Shock

Mechanical shock is sometimes used to stabilize tool steels. One method of producing shock is to suspend the part so that it hangs freely and then strike it with a wooden hammer. This is believed to set up elastic waves which add to the magnitude of the residual stress imparted by the previous heat treatment. At locations where the resultant magnitude of stress exceeds the elastic limit, plastic flow should occur and result in stress relief. This would be manifest by higher dimensional stability. A shock treatment should not be considered as a substitute for a thermal method of stabilization but rather as an auxiliary method which enhances stabilization.

Dimensional changes in W1 steel resulting from dropping on a concrete floor as determined by Fletcher (are shown in Fig. 6. The untempered specimens showed greater dimensional changes than the tempered specimens due to the higher level of residual stress in the untempered condition.

For more information, click on the link below (subscription required). Then scroll to Figure 6.

Jon L. Dossett; George E. Totten, *Control of Distortion in Tool Steels*, ASM International, 2014
https://doi.org/10.31399/asm.hb.v04d.9781627081689

Ipsen USA Receives New Vacuum Furnace Order from Urschel Laboratories


Source: ASM International

Ipsen USA Receives New Vacuum Furnace Order from Urschel Laboratories

Ipsen USA, Cherry Valley, Illinois, announced a new equipment order from Urschel Laboratories for a MetalMaster HR 54×48 vacuum furnace. The order marks 40 years of partnership between the two companies, with the new unit replacing an original Ipsen furnace installed in 1986.

The MetalMaster HR is designed for high-performance heat treating applications including hardening, tempering, brazing, and annealing in a vacuum or partial-pressure environment. The furnace features a horizontal front-loading design with an integrated high-pressure gas quench system.

Urschel Laboratories, based in Chesterton, Indiana, is a global manufacturer of precision food cutting equipment. The company relies on vacuum heat treatment to achieve the hardness, wear resistance, and dimensional stability required for its cutting components, which operate under demanding production conditions in the food processing industry.

The replacement of the 1986 furnace reflects both the longevity of Ipsen equipment and the ongoing need for modern controls, energy efficiency, and process documentation capabilities in today’s manufacturing environment. Ipsen reported a 45% year-over-year increase in new equipment units sold in 2025.

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Seco/Warwick Partners with European Defense Sector Manufacturer


Source: ASM International

Seco/Warwick Partners with European Defense Sector Manufacturer

Seco/Warwick, Swiebodzin, Poland, announced its first contract with a European defense manufacturer. The company will deliver a customized single-chamber vacuum furnace equipped with advanced low-pressure carburizing technology and high-pressure gas quenching for heat treatment of steels used in firearm manufacturing.

The contract represents a shift by the defense client from traditional gas carburizing to modern low-pressure carburizing, which improves quality, process predictability, and energy efficiency. The vacuum furnace approach eliminates the environmental concerns associated with atmosphere-based systems while delivering more uniform case depth and reduced distortion.

The deal holds strategic significance for both parties. For the client, it represents a modernization of defense manufacturing infrastructure. For Seco/Warwick, it establishes a position as a solutions provider in the European defense sector, a market segment with growing demand for advanced thermal processing equipment.

Seco/Warwick operates globally with manufacturing facilities in Poland, the United States, India, and China, and service centers across Europe and Asia.

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Gasbarre and SOLO Swiss Announce Exclusive Licensing Agreement for North America


Source: ASM International

Gasbarre and SOLO Swiss Announce Exclusive Licensing Agreement for North America

Gasbarre Thermal Processing Systems, DuBois, Pennsylvania, and SOLO Swiss SA, Porrentruy, Switzerland, announced an exclusive licensing agreement granting Gasbarre the rights to promote, sell, and manufacture the SOLO ProfiTherm heat treating system in North America. The agreement was announced on January 21, 2026.

The ProfiTherm system features a modular arrangement of bell furnaces and quench tanks with direct, rapid transfer from furnace to quench. The design is positioned as a practical alternative to traditional integral quench batch furnaces, offering a more compact footprint that simplifies installation and reduces plant disruption.

ProfiTherm supports a range of heat treating processes including austempering, marquenching, carburizing, carbonitriding, and neutral hardening. Target applications include captive heat treat departments and commercial shops serving general industry, aerospace, defense, and bearing markets.

The partnership expands Gasbarre’s equipment portfolio and gives North American heat treaters access to SOLO Swiss bell furnace technology that has been widely adopted in Europe.

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Bodycote Expands U.S. Aerospace and Defense Footprint with Acquisition of Spectrum Thermal Processing


Source: ASM International

Bodycote Expands U.S. Aerospace and Defense Footprint with Acquisition of Spectrum Thermal Processing

Bodycote, Macclesfield, UK, announced the acquisition of Spectrum Thermal Processing, a heat treatment provider based in Cranston, Rhode Island. The transaction closed on January 14, 2026.

Spectrum brings established Nadcap-accredited and ITAR-compliant capabilities to Bodycote’s North American operations, including vacuum heat treatment, low-pressure carburizing, and gas nitriding services. The acquisition strengthens Bodycote’s regional capacity in the northeastern United States and reinforces its ability to support aerospace, defense, space, and industrial customers.

The deal expands Bodycote’s presence in critical process categories that serve sectors with demanding quality and compliance requirements. With the addition of Spectrum’s facility and expertise, Bodycote continues to build on its position as the world’s largest provider of heat treatment and specialist thermal processing services.

Bodycote operates more than 160 facilities in 22 countries worldwide. The company noted that the acquisition aligns with its strategy of targeted growth in markets with high barriers to entry and strong long-term demand, particularly in the aerospace and defense sectors.

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