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Company Profile: AFC-Holcroft

AFC-Holcroft celebrates 100 years as the U.S. market leader in the production of industrial furnace equipment for ferrous and nonferrous metals.

Molly J. Rogers

Heat Treating Education

For an industry that is key to the performance of many everyday products, creating more higher education programs in heat treating and metallurgy is essential.

D. Scott MacKenzie, Ph.D., FASM

Hybrid Forging: Advances in Open Die and Closed Die Forging

Using the advantages of open die forging combined with the near-net shape capability of closed die forging, the forging process can be tailored to optimize time and cost savings.

Ashley Lukowicz & Margaret Dort

Single-Piece, High-Volume, and Low-Distortion Case Hardening of Gears

A new concept has been developed for a single-piece flow case hardening system that adjusts to the size and shape of a particular gear in order to minimize distortion and ensure ideal repeatability of results.

Maciej Korecki, Ph.D., Emilia Wolowiec-Korecka, Ph.D., DSc. & Doug Glenn

Detrimental Effects of Sulfur on Transverse Impact Properties in Steel Forgings

Supplying heat-treated forgings with Charpy impact specifications requires special attention to sulfur content in each heat of steel, even if the levels are within material specification limits.

Chuck Hartwig

Carburizing and Nitriding Treatment Modeling

The finite element method can provide insights needed by engineers to calibrate thermal processes, whether it’s carburizing or nitriding, and maximize the benefits of the heat treatment.

Nicolas Poulain

Departments

Q&A: George Barbour

Quality Counts: Thermal Process Modeling

The selected examples show how thermal process modeling is being used in commercial applications for analyzing and improving heat treatment processes.

B. Lynn Ferguson

Metal Urgency: Carbon Diffusion and Carburizing Parameter Selection

In the carburizing process, the carbon diffusion determines the carbon concentration gradient and hardness profile in the case of the workpiece.

March Li

Hot Seat: Furnace Doors

For proper seal and functionality, doors are the furnace’s most critical component.

Jack Titus

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