10 tips to ensure accurate thermocouple measurement
Careful selection and installation of temperature sensors can ensure accurate sensor performance, which in turn improves product quality and production efficiency.
1: Select the Correct...
Properties of Cases Treated with High-Temperature Vacuum Carburization
Carburizing continues to be one of the basic thermochemical treatments used for industrial steel. With the development of the industry, carburizing has evolved from...
Hardening of Powder Metallurgy Parts 101
Powder metallurgy (PM) is unique in that one has the ability to create a process system (alloy, process steps, and secondary operations) specific to...
Cryogenic processing for longer tool life
In almost every industrial trade magazine, there will appear an occasional article about “cryogenics.” Thermal Processing has devoted an annual issue to cryogenic processing...
Deep Cryogenic Treatment
What is deep cryogenic treatment? Deep cryogenic treatment (DCT) of steels and other materials is a distinct process that uses the application of extreme...
Heat Treat Process For Gears
Heat treatment is a critical and complex element in the manufacturing of gears that greatly impacts how each will perform in transmitting power or...
Demand for forged parts spurs drive to rebuild, automate equipment
Today, global demand for rebuilt forging equipment is surging, driven in part by a dramatic rise in the need for military ordnance spurred by...
The importance of preventative maintenance
For those of you who work in heat treat every day, this will be nothing new; however, it will be an attempt to assist...
Case Study: Conrad Kacsik and Modern Industries
Modern Industries, one of the largest heat-treating facilities in Pennsylvania, has seen its share of equipment come and go since its beginning 71 years...
Infrared Temperature Measurement Theory and Application
An infrared thermometer measures temperature by detecting the infrared energy emitted by all materials at temperatures above absolute zero, (zero degrees Kelvin). The most...
Insulation paper: Exploring a versatile thermal solution
Insulation paper is a thin, flexible, high-temperature material used in industrial processing applications where heat management is critical. It provides thermal protection up to...
Tooth-by-Tooth Induction Hardening of Gears (and How To Avoid Some Common Problems)
Tooth-by-tooth induction hardening of gears is a complex process. Variations of any of kind may be sufficient to cause the process to run out...
Cryogenic process and application to ferrous alloy
Cryogenics or sub-zero treatment is the third parameter required to achieve maximum hardness in ferrous alloys.
Microstructure and tensile properties of Al PM prepared by novel low-pressure sintering
This article proposes a novel low-pressure sintering process contraposing to characteristics of pre-alloyed aluminum powders and analyzes its feasibility. The low pressure was set...
Investigations on the tooth root bending strength of larger-sized, induction-hardened gears
Surface hardening is an economical and technological alternative to case hardening. This is especially true for larger-sized gears. Due to the necessary high case-hardening...
The cutting edge of thermal processing in a forge environment
Scot Forge is a 128-year-old, 100-percent employee-owned forging company that works in multiple markets from large defense, aerospace, power generation and mining projects to...
Carbo-nitriding of forging dies
Forging dies have to resist high mechanical and thermal loads. Therefore, they are usually nitrided. Former investigations showed that the abrasive wear at the...
Enhanced Properties of 17-7 PH Stainless Steel
Background
Precipitation-hardening (PH) stainless steel grade 17-7 PH is classified as a semiaustenitic stainless steel used extensively in aerospace and finding new applications in the...
Choosing between HFC and HFDu hydraulic fluids
While both HFC and HFDu hydraulic fluids reduce fire risk, improve operation safety, and enhance environmental performance, significant differences exist. Standing at 50 to...
Advantages of Induction Hardening with No Soft Zone on Large Bearings
Large bearings are required to carry large axial and radial forces and their resulting torques. Typical applications include general machinery and construction equipment, as...
DFARS, NIST SP 800-171, and CMMC 2.0 compliance
As a heat treater, if you are providing services or products to a Department of Defense (DoD) contractor, a downstream supplier, or fall anywhere...
The advantages of pulse plasma nitriding
In the gear manufacturing industry, when case-hardening, tempering, or nitriding the surface of steel, whether for gears or gearboxes, the options have traditionally included...
The subtleties of induction processing
Inductoheat was recently asked to conduct three technical video seminars on modern induction thermal technologies for automotive industry:
• The first seminar was April...
Nitrogen gas quenching pressure effect on BS S155 alloy steel in vacuum furnace
The production of metal and alloy products requires the use of heat treatment. During the heat-treatment process, quenching is a crucial step. The quenching...
Induction hardening of cast irons
The success in induction hardening of cast irons and repeatability of obtained results are greatly affected by a potential variation of matrix carbon content.
Improving audit performance
To add value to the aerospace suppliers who participate in Nadcap, there is an ongoing effort to do more to assist them in successfully...
Tighter Control Through Understanding What Your TUS Reports Are Telling You
Temperature uniformity is the temperature variation (usually expressed as ± degrees) within the qualified furnace work zone (Figure 1) with respect to a set...
Soaring demand for purified graphite spurs need for high-volume furnaces
The global demand for graphite is surging and expected to continue for decades, driven by the broad use of graphite for a range of...
Industrial ion nitriding of TMS 80 micro alloyed steel parts at various plasma power...
Control of the ion nitriding process is typically based on temperature of the work piece, composition of the gas mixture, gas pressure, nitriding time,...
Spectroscopic study of plasma nitrocarburizing processes with an industrial-scale carbon active screen
The active screen plasma nitrocarburizing technology is an improvement of conventional plasma nitrocarburizing by providing a homogeneous temperature distribution within the workload and reducing...
Combustion behavior and mechanism of Ti14 titanium alloy
The combustion behavior and mechanism of Ti14 titanium alloy are studied by promoted ignition combustion tests at different oxygen pressures. The burning velocity increases...
Gas vs. Liquid Quenching: A Direct Comparison in Hardenability to Reduce Distortion
Introduction
Hardenability is the ability of steel to partially or completely transform from austenite to some fraction of martensite at a given depth below the...
Single-piece flow case hardening can be worked into in-line manufacturing
Case hardening by carburizing is the most common heat treatment in mass production, which relies on atmosphere or vacuum carburizing followed by oil or...
Performance and Properties of a new Alternative Gear Steel
In the ongoing strive for light weighting or power densification, high-performance clean steels are showing a significant improvement. As a next step, gear steels...
The future of kiln lining fibers
Lining iron and steel furnaces is critical to extend the life of the furnaces and to protect the purity of the metals being heat...
AC7102 Checklist Review, Part 4
Editor’s note » This is the fourth of a five-part series of articles that will deconstruct the requirements of AC7102. Each article will appear every...
Variety of Furnaces Can Be Used for Heat Treatment of Gears
Gear heat treatment can be done in a wide variety of different types of industrial furnaces, each with its own unique characteristics. This article...
Reducing Gear Size for Compact Transmission Design by Selecting Steel Grade and Heat Treatment...
Gears are the most important components for transmissions. In many situations, the size of a transmission design needs to be reduced without decreasing power...
How to tame a plasma: Power-delivery solutions for top process issues
Film quality, throughput, yield, etch uniformity, and sidewall control all depend on the ability to ignite, maintain, and control a stable plasma. Precise, nimble...
Gas Nitriding of Titanium
Interest in solution gas nitriding and diffusion of nitrogen into the surface of titanium alloys as a means to inhibit adhesive wear (galling) while...
