One Minute Mentor: Improving the Homogeneity of the Distortion Behavior

September 16, 2024
Source: ASM International

One Minute Mentor: Improving the Homogeneity of the Distortion Behavior

Controlling out-of-roundness is important for certain precision applications, such as class C and D cutting hobs made of high-speed steels. Class C and D hobs must be held close to size limits because they are not ground to size after heat treatment, but rather are used in the unground condition.

Normal size distortion in hardening and tempering can be accommodated by making the tool slightly oversize or slightly undersize, as required, before heat treating. High-speed steel bars, however, have been observed to go out-of-round as much as 0.05 mm (0.002 in.) during heat treatment. The pattern of size distortion shown in Fig. 8 can occur. It appears to be related to the initial shape of the cast ingot and to the specific primary-mill processing used to reduce the ingot into bars.

For more information, click on the link below (subscription required). Then scroll to Figure 8. R Schneider; R. Mesquita; W Schützenhöfer, Distortion in Tool Steels, ASM International, 2014  https://doi.org/10.31399/asm.hb.v04d.a0005980

Metex Heat treating announces acquisition of Exactatherm Ltd


Source: ASM International

Metex Heat treating announces acquisition of Exactatherm Ltd

Metex Heat Treating, Mississauga, ON, has announced the acquisition of Exactatherm Ltd, a specialist in heat treating for the aerospace, stainless, and tool steels industries. This acquisition is a key part of Metex’s strategy to expand its capabilities and provide comprehensive solutions to clients across the automotive, aerospace, nuclear, commercial, and tool and die sectors.

With this acquisition, Metex will leverage Exactatherm’s industry expertise alongside its own advanced technologies, further strengthening its market position. Exactatherm will continue to operate as a separate entity under the Metex group, maintaining its established reputation for delivering high-quality services.

“This acquisition reinforces our commitment to providing unmatched solutions to our customers,” said Surjit Bawa, President of Metex Heat Treating Ltd. “Together, we will build on our shared strengths and create new opportunities for growth.”

Metex Heat Treating was founded in 1983 and has grown to be the largest heat treater in Canada, specializing in various heat treatment process

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Wisconsin Oven ships small batch oven to Canadian manufacturer


Source: ASM International

Wisconsin Oven ships small batch oven to Canadian manufacturer

Wisconsin Oven, East Troy, WI, announced the international shipment of an electrically heated small batch oven to a Canadian manufacturer of automotive components. The oven, designed for curing parts, has a maximum temperature rating of 650°F and chamber dimensions of 4’ W x 4’ L x 4’ H. Prior to shipment, the oven’s temperature uniformity of ± 10°F was verified through a nine-point profile test conducted in an empty chamber under static conditions.

The unit features patented high-efficiency panel seams for improved insulation, a 4” thick insulated floor, and two carbon steel shelves for part loading, each rated for 5 pounds per square foot. It utilizes combination airflow for optimal heating rates and uniformity, with temperature controlled by a Watlow F4T digital controller, featuring a touch screen, PID control, and Ethernet communication.

The oven also includes a process timer with an audible alarm, ensuring consistent curing and part quality.

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Constellium announces significant weight savings in EV Battery enclosures through ALIVE project


Source: ASM International

Constellium announces significant weight savings in EV Battery enclosures through ALIVE project

Constellium, based in Paris, announced that its collaborative research project, Aluminium Intensive Vehicle Enclosures (ALIVE), has achieved weight savings of 12 to 35 percent for electric vehicle (EV) battery enclosures. The project, led by Constellium’s University Technology Center at Brunel University London, focused on optimizing the design and manufacturing processes for structural aluminum enclosures in EVs.

Launched in 2020, the £15 million initiative was partially funded by the UK government through the Advanced Propulsion Centre (APC). The project involved six industrial partners, including BMW, Volvo, and Innoval Technology, along with university technology partners from Brunel University London and the University of Warwick.

The ALIVE team developed new aluminum designs using Constellium’s high-strength alloys, HSA6® and HCA6®, while implementing advanced joining and forming technologies. Full-scale prototypes were produced and successfully passed rigorous testing for performance, safety, and fire resistance. The project also generated cost models to support future industrialization of the designs.

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OMM: Material aspects of Distortion

September 2, 2024
Source: ASM International

OMM: Material aspects of Distortion

Size distortion in ledeburitic cold-work tool steels is always higher in longitudinal direction (the direction of main deformation, which is the direction of the elongated carbide stringers). The figure shows the effect in three different cases. 

If plates for cutting tools made from ledeburitic cold-work tool steels are taken from small bar materials in the longitudinal direction, the main direction of distortion will also be in the longitudinal direction of the plate (case I). If the same plate is taken in the transverse direction from a wide bar material, the main direction of distortion will be in the transverse direction of the plate (case II). Finally, if the plate is taken as a slice from a large-cross-section thick bar, the carbide orientation and the main direction of distortion will be in the direction of the plate thickness (case III).

For more information, click on the link below (subscription required). Then scroll to Figure 7. R Schneider; R. Mesquita; W Schützenhöfer, Distortion in Tool Steels, ASM International, 2014  https://doi.org/10.31399/asm.hb.v04d.a0005980

Solar Atmospheres announces rapid progress on Michigan facility expansion


Source: ASM International

Solar Atmospheres announces rapid progress on Michigan facility expansion

Solar Atmospheres, Chesterfield, MI, announced significant progress on the 20,000-square-foot expansion of its Michigan facility. The Delta Industrial team quickly erected the steel structure in just one week. The new expansion will accommodate additional vacuum and air furnaces and provide a dedicated shipping and receiving area. The project remains on schedule for completion by the end of 2024, marking a key step in enhancing Solar Atmospheres’ operational capabilities.

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Nitrex announces new system installation at Volkan Steels


Source: ASM International

Nitrex announces new system installation at Volkan Steels

Nitrex, based in Quebec, announced the installation of a new nitriding/nitrocarburizing system at Volkan Steels (V’Steels), a prominent tool steels supplier in Istanbul, Turkey. The new system, model NX-1015, has a 2,000 kg (4,400 lb) capacity, enhancing V’Steels’ ability to provide value-added heat treatment services to its customers.

This advanced Nitrex system supports nitriding, nitrocarburizing, and post-oxidation processes using Nitreg, Nitreg-C, and ONC technologies, crucial for increasing the wear resistance, fatigue strength, and durability of tooling. The upgrade is expected to improve the performance of various tooling applications, such as aluminum extrusion dies, die-casting dies, forging dies, and plastic injection molding dies. This installation reflects V’Steels’ dedication to delivering top-quality tool and stainless steels to industries like energy, petrochemistry, defense, and maritime, meeting the growing demand for high-performance materials.

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ECM USA announces partnership with PAI Industries for in-house furnace system


Source: ASM International

ECM USA announces partnership with PAI Industries for in-house furnace system

ECM USA,  Pleasant Prairie, WI, announced a partnership with PAI Industries to enhance manufacturing capabilities by introducing an in-house carburizing vacuum furnace system. PAI Industries, a leading provider of parts for the heavy-duty truck industry, will integrate the ECM NANO vacuum furnace into its 112,000 sq. ft. facility in Suwanee, GA, moving away from outsourced heat treatment.

This addition enables PAI Industries to perform low-pressure carburizing and through-hardening processes continuously, improving production speed and capacity. The ECM NANO system, featuring an external loader, three-position temper oven, and queuing positions, offers benefits such as no internal oxidation (IGO), zero CO2 emissions, reduced fire risk, and improved metallurgical outcomes. Testing was conducted at ECM USA’s Synergy Center to validate these advantages before project acceptance.

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SECO/WARWICK announces expansion of Meadville facilities


Source: ASM International

SECO/WARWICK announces expansion of Meadville facilities

SECO/WARWICK, Meadville, PA, has announced plans to expand its manufacturing facilities to enhance service for North American customers. The expansion involves relocating part of its manufacturing operations and a metallurgical lab for vacuum furnaces from Poland to Crawford County, PA.

Pennsylvania’s Department of Community and Economic Development (DCED) will support this initiative with a $2 million grant under the Redevelopment Assistance Capital Program (RACP), which SECO/WARWICK will match. Additionally, $69,000 in matching funds will be provided for job training through the Workforce & Economic Development Network (WEDnet).

The expansion will occupy a 120,000 sq. ft. facility in the Crawford Business Park, a site redeveloped from the former American Viscose Corporation mill. This development is expected to benefit the community and bolster SECO/WARWICK’s capabilities in producing heat-treating and aluminum melting furnaces.

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Wisconsin Oven ships electrically heated drop bottom furnace to the aerospace industry

July 28, 2024
Source: ASM International

Wisconsin Oven ships electrically heated drop bottom furnace to the aerospace industry

Wisconsin Oven, East Troy, WI, announces that it has shipped an Electrically Heated Drop Bottom Furnace with a traveling quench tank and maintenance platform to the aerospace industry. This system will be used for the solution heat treatment of aluminum parts.

The drop bottom furnace has a maximum operating temperature of 1,100°F and effective workspace dimensions of 3’6” W x 3’6” L x 4’0” H. An OSHA-compliant maintenance platform provides ease of access for personnel to service the equipment. The quench tank has a capacity of approximately 1,700 gallons and includes fluid level control (low, fill, high), a lockable water drain port at the bottom of the tank, and an agitator for water circulation. The traveling quench tank is enclosed with safety fencing for added safety during operation.

This drop bottom furnace is designed with sufficient capacity to heat 600 pounds of aluminum per load and provide a quench delay that does not exceed 5 seconds. The system also includes a slow drop speed program for heating applications that do not require a quench. A video of this system in operation can be viewed online.

“This drop bottom furnace was designed with a 5-second quench delay and a temperature uniformity of +/- 5°F at the set points 850°F and 1,100°F. Additionally, the system was tested to be in compliance with AMS 2750F, Class 1 furnaces, and Instrumentation Type C prior to shipment from our manufacturing facility,” said Mike Grande, Vice President of Sales.

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