Since 1981, AHT has developed into a multi-service heat treat company that
From receiving through final inspection and shipping, quality is impeccably
Advanced Heat Treat Corp. looks at your project and needs on a case-by-case
Whether you're an engineer looking for in-depth technical articles on nitri
Advanced Heat Treat Corp. is committed to customer service. Through the yea
Not witnessing the lubricity results you had estimated on your latest part
UltraGlow® Ion Nitriding (also known as Pulse Plasma Nitriding) is a case-h
UltraGlow® Nitrocarburizing (Ferritic Nitrocarburizing or FNC) is a the
Seeing corrosion earlier than expected on your low-carbon steels?
Advanced Heat Treat's UltraOx® treatment improves corrosion resistance
Advanced Heat Treat's UltraOx® "P" treatment gives all the benefits of Ultr
UltraGlow® Induction Hardening is a form of heat treatment in which a s
Advanced Heat Treat Corp. offers an array of services, including those cons
Advanced Heat Treat Corp. offers many services in addition to what you may
Tools that are UltraGlow® Ion Nitrided can be used to form much stronger st
Long and/or large parts processed in the finished condition benefit from Ul
Since plasma is very effective in removing the passive layer of a chromium
Products made of powder metal stainless steel have a much higher hardness a
UltraGlow® Ion Nitriding improves wear resistance and corrosion resistance
Tools made of M-2 and other similar steels are treated at Advanced Heat Tre
Forging tools after UltraGlow® Ion Nitriding can have a very high hardness
Since the hard surface polishes easily, tools made of P-20, PX 5, or NAK 55
UltraGlow® Ion Nitriding is the most common process used to prevent the unw
Due to minimal-to-no distortion with UltraGlow® Ion Nitriding, this means t
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Aligned with the mission of "Exceeding Customer Expectations with UltraGlow
Due to minimal-to-no distortion with UltraGlow® Ion Nitriding, this means there's no need to grind the tooth form after heat-treatment and the products can be put directly into service.
UltraGlow® Ion Nitriding increases wear and scuffing (scoring) resistance of the tooth flanks and bending fatigue resistance at the tooth root as well as the rolling contact fatigue (RCF) resistance of the gear teeth surface. It also produces high resistance to tempering i.e. increases the resistance of the steel to softening at slightly elevated temperatures. Stress studies on nitrided case show there are areas of compressive stresses beneath the surface of the diffusion zone. Additionally, these studies indicate that stress values are at their peak in the most highly alloyed steels.
UltraGlow® Ion Nitrided gears made from an appropriate material can replace carburized and carbonitrided gears. Comparison of tooth flank fatigue strength for different types of steel showed effect of case depth, core hardness, and microstructure on fatigue strength. The load bearing capacity at the flank and root of the gear tooth are affected by thickness of the compound zone; UltraGlow® Ion Nitrided gears with a maximum of one micron compound zone thickness have the highest load bearing capacity. Nitrided gears do not require as much case depth as required in carburized or other case hardened gears, and tensile strength of core material prior to UltraGlow® Ion Nitriding should be taken into account in assessment. Figure 1 shows the recommended case depth based on a diametral pitch of a gear and an ion nitrided gear made of 17-4PH with diametral pitch of 48, micrograph @ 50X showing uniformity of nitrided layer.
AGMA quality class: 10-12 diametral pitch 24-96 precision gears.
Modern Nitriding Techniques for Gear Applications
Surface Engineering: Thermochemical surface engineering using plasma nitriding can improve the properties and performance of gears made of steels and titanium alloys.
"Ion Nitriding of Ferrous and Titanium Alloys for Gear Applications", authored by our very own Edward Rolinski, Tekin Damirgi, and Mikel S. Woods, published by Thermal Processing for Gear Solutions.
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