38 Heat Treating Furnaces for Aerospace

October 24, 2025 / AEROSPACE HEAT TREAT NEWS, ALUMINUM PROCESSING NEWS, ANNEALING NEWS, QUENCHING NEWS

A U.S. Air Force contract has been awarded for 38 advanced aerospace heat treating furnaces. The furnaces will enhance mission-critical aircraft maintenance capabilities at bases across the United States and overseas.

Phillips Corporation Federal Division and DELTA H® Technologies will provide the furnaces. Of the 38 are 13 Model DCAHT®-181248-1200/500-MIL units and 25 Defender Series Model DEF-DC-RH-242436/1200-CH-242436/1200 units. Deliveries are scheduled over the next year to provide the USAF with heat treating capacity for aviation-grade metals to meet AMS2750H compliance and NAVAIR TO 1-1A-9 standards.

“Phillips Federal is honored to support the U.S. Air Force through this partnership,” said Kelley Padham, president of Phillips Corporation, Federal Division. “Our collaboration with DELTA H Technologies continues to expand the boundaries of advanced manufacturing for the Department of Defense — empowering readiness, resilience, and rapid innovation wherever our warfighters serve.”

Service member team working with new Delta H furnace
Source: Delta H Technologies

Richard Conway, director and CTO of DELTA H Technologies and a U.S. Air Force veteran, added: “Ten years ago, the Air Force asked us to help solve a problem. As an engineer and veteran, it became a personal mission to provide the best heat treating solutions possible. Today, knowing the USAF relies on DELTA H and Phillips Federal for this critical technology is deeply humbling.”

The DCAHT® Model has dual convection-heated chambers with certified TUS work volume at 18” W × 12” H × 48” L. The lower chamber operates to 1200°F for aluminum solution heat treating with a roll-away quench tank, and an upper chamber which operates up to 500°F for aluminum aging.

The Defender Series Model has dual TUS-certified work volumes at 24” W × 24” H × 36” L. The convection chamber operates between 200°F–1200°F with rapid cooling from 1000°F to <200°F in under 30 minutes, enabling complete solution heat treating, annealing, and aging (T6). The radiant chamber operates between 1000°F–2000°F, with inert gas atmosphere capability.

Press release is available in its original form here.

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USAF Metals Technology Personnel – Qualified to Heat Treat on 50+ Systems

April 4, 2024 / AEROSPACE HEAT TREAT, AEROSPACE HEAT TREAT NEWS, ATMOSPHERE AIR FURNACES NEWS

Richard B. Conway
Founder/Director/CTO
DELTA H® Technologies, LLC
Source: DELTA H

Multiple military facilities now operate more than 50 heat treat systems from a North American furnace and oven supplier. These facilities include Air National Guard bases, USAF bases stateside, Guam, Alaska, and Hawaii, Air Bases in Japan, Germany, United Kingdom – Royal Air Force, Middle East, the U.S. Navy, U.S. Coast Guard, and U.S. Army facilities.

The systems from DELTA H included either single, dual or triple chamber designs of both the heavy duty commercial aviation standard models DCAHT® / SCAHT® Series, the supplier’s Defender Series – developed for the armed forces, and aircraft composite walk-in ovens.

All systems are in full compliance to NAVAIR Tech Order 1-1A-9, and meet AMS2750 accountability standards for accuracy, temperature uniformity, calibration, and secure batch records.

Ellen Conway Merrill with USAF Metal Technology personnel
Source: DELTA H TECHNOLOGIES, LLC

Richard Conway, director & CTO of DELTA H®, shares: “It is a deep honor and humbling for the DELTA H team to support our armed forces. We take the utmost care to ensure the best of our craftsmanship and abilities are utilized to deliver the finest heat treating equipment for aircraft maintenance to our Warfighters.”

Military personnel are provided full operator and heat treating and maintenance training, as well as on-site qualifying assistance to meet and maintain the stringent pyrometry standards. Successful trainees receive Certificates of Training as qualified to use their DELTA H® furnace for heat treatment of aircraft parts.

This press release is available available upon request.

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Heat Treating System Delivered to Tinker Airforce Base in Oklahoma

November 14, 2022 / AEROSPACE HEAT TREAT, ATMOSPHERE AIR FURNACES NEWS, FEATURED NEWS

A heat treat system for use in the aerospace and defense industry was recently delivered to Tinker AFB, OK - USAF. The system is certified to AMS2750G and will be used to heat treat aluminum as well as other metals for use on military aircraft.

DELTA H® and Phillips Federal delivered the furnace to Tinker AFB, which will be used for for heat treating aviation grade aluminum for military purposes. Third party services for calibration and qualification were performed by Andrew Bassett, president of Aerospace Testing and Pyrometry. The certifications for instrumentation, temperature uniformity surveys, and system accuracy testing were completed through ATP’s new Aerospace Compliance Software (ASC) to AMS2750G.

The Dual Chamber Aerospace Heat Treat (DCAHT^®) system has a certified TUS volume of 24” wide, 16" high, 72" long. In addition to aluminum, the system can be used for PH stainless steel aging, as well as titanium and ferrous alloy processes. Training was provided to several operators, QC personnel, and two “Trainers” qualified to train other operators.

“As an USAF veteran," commented Richard B. Conway, founder, director, and CTO of DELTA H. "[I]t is a deep honor to do all we possibly can to assure that our Warfighters have the finest heat treating equipment available for defending our nation."

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United States Air Force in UK Receives Aerospace Furnace and Heat Treat Training

November 10, 2021 / AEROSPACE HEAT TREAT, ATMOSPHERE AIR FURNACES NEWS, FEATURED NEWS

United States Air Force personnel stationed at Royal Air Force (RAF) Base Mildenhall in the United Kingdom recently commissioned and received full training on the use and maintenance of a heat treating furnace for aerospace parts. The furnace will help maintain KC-135, CV-22, C-130 aircraft, and F-15 fighter jets assigned to RAF Mildenhall or nearby RAF Lakenheath air stations. The installation was interrupted by an impromptu visit from the U.S. President.

Richard Conway
Chief Technology Officer
Delta H Technologies

The DELTA H® TECHNOLOGIES dual chamber heat treating furnace for aerospace (DCAHT®) was designed by the supplier to rapidly heat treat all common aviation grade metals and alloys necessary for aircraft maintenance and is fully compliant with USAF/NAVAIR Tech Order 1-1A-9 and SAE-AMS2750F. The training received by the USAF airmen at RAF Mildenhall included essential instructions in heat treating, as well as furnace calibration practices like temperature uniformity surveys (TUS) and system accuracy tests (SAT) and culminated with each airman receiving Certificates of Training.

The specialized furnace features an upper chamber convection system, 18" wide x 12" high x 48" deep, capable of Class 1 (+/-5°F) from 200°F to 1200°F and a lower chamber radiant heat system, 12" wide x 12" high x 36" deep, capable of Class 3 (+/-15°F) from 1000°F to 2000°F with air or argon atmosphere. A roll-away quench tank features dual baths for water and oil quenchant. The controls and data acquisition provide detailed batch records of heat treated parts, including quench delay, as well as automatic tracking of thermocouple usage and calibration intervals.

The training was interrupted by an unexpected visitor to RAF Mildenhall. The hangar next to the Metals Tech Shop, where the furnace was being commissioned and the training was being conducted, was the epicenter for the arrival of a top-secret VIP. When the Air Force Band began practicing "Hail to the Chief," it became obvious that U.S. President Joe Biden would be making an unexpected visit to the base. While the President’s visit was not related to the furnace commissioning, Richard Conway, DELTA H® founder and chief technology officer, and wife Mary Conway, witnessed this presidential visit and got a few candid photographs of Air Force One (see above).

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Drone, Aerospace Composites Producer Receives Walk-In Oven

March 9, 2020 / AEROSPACE HEAT TREAT, AEROSPACE HEAT TREAT NEWS, FEATURED NEWS

Composites Universal Group (CUG), an internationally recognized composite manufacturing company specializing in the production of high-quality composite components for aerospace, drones, industrial and space applications, recently received a large walk-in oven from DELTA H.

The oven features an interior volume of 12’ wide, 10’ tall, and 32’ deep, with high volume New York Blower plug fan, PowerFlame gas burner, and rapid cooling/chamber pressure control. For vacuum composite processing, the system features multiple part temperature as well as vacuum transducers for precision monitoring of process heating. Eurotherm Nanodac is featured with cascade control that selects the coolest part and automatically adjusts air temperature to precisely maintain the desired ramp rate, soak time, and cooling rate.

CUG has multiple projects underway, including Vahana electric VTOL aircraft, Sierra Nevada Corp Dream Chaser Pressure Vessel, and Leidos Corp. Composite Beams. DELTA H CTO Richard Conway stated, “It is truly rewarding and exciting to be among the technology providers supporting these projects and to have a role in the cutting edge of transportation.”

(Image Source: Leidos Investor Relations)

“The DELTA H Composite Oven has performed flawlessly ever since initial startup. It’s become a critical part of our equipment listing here within CUG. . . . It is critical to our operations and the curing of our high temperature parts fabrication,” states Steve Ruege, President and Director of Sales at Composite Universal Group.

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Medical Devices Manufacturer Expands In-House Heat Treating Capabilities

September 23, 2019 / FEATURED NEWS, MEDICAL HEAT TREAT, MEDICAL HEAT TREAT NEWS

A medical device manufacturer has upgraded its in-house heat treating capabilities with a dual-chamber furnace system, which will give the company the same pyrometry requirement in its medical device production as materials and parts produced for the aerospace and defense industry in terms of furnace/oven calibration, classification and performance requirements.

Richard Conway, DELTA H chief technology officer and founder

Straits Orthopaedics in Penang, Malaysia, commissioned DELTA H TECHNOLOGIES for a second dual-chamber aerospace heat treat (DCAHTTM) furnace system. The furnace system, controls, and software are designed for full compliance to the medical accreditation program “MedAccred” as well as the US FDA’s recent recognition and adoption of the Society of Automotive Engineers (SAE) Aerospace Materials Specification 2750 (AMS2750) pyrometry standard.

“Previously medical device pyrometry standards varied somewhat from manufacturer to manufacturer,” said Richard Conway, DELTA H chief technology officer and founder. “With the adoption of the well-established AMS2750 standard, there is a consistent requirement across the industry. For DELTA H this is an exciting opportunity in a market that now has the same uncompromising demands for performance and accountability which our thermal processing systems are designed for.”

“DELTA H is making great contributions to our heat treating technology which is delighting all our customers,” Mr. TH Su, CEO of Straits Orthopaedics.

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USAF Commissions Aerospace Heat Treating System

August 28, 2019 / AEROSPACE HEAT TREAT, AEROSPACE HEAT TREAT NEWS, FEATURED NEWS

The United States Air Force commissioned a dual chamber aerospace heat treating (DCAHT^TM) furnace system from a leading manufacturer of heat treating equipment for the aerospace and defense industry.

DELTA H Chief Technology Officer and founder Richard Conway — DELTA H chief technology officer and founder Richard Conway

DELTA H Technologies presented the system while visiting Kunsan Air Base in South Korea. These highly specialized furnaces provide crucial heat treating capacity for military aircraft while adhering to the strict calibration and record standards of the Armed Forces.

“As a USAF veteran, there are few things more gratifying than personally delivering to our warfighters the absolute best and most practical technology possible for heat treating aircraft parts,” said DELTA H chief technology officer and founder Richard Conway, who was there when the innovative technology was presented.

DELTA H’s DCAHT furnaces are designed exclusively to comply with the strict aerospace / military pyrometry standards AMS2750E and USAF/NAVAIR Technical Order 1-1A-9. Nine airmen stationed at Kunsan Air Base received certificates of training for heat treating operation. Three outstanding servicemen were also qualified as trainers and are now authorized to teach future operators how to effectively use the system.

“Heat treating is vital to the mission of any airfield. When you look at any aircraft, it is not difficult to imagine all the metal parts – and every single one has been processed with heat in some form or another in order to have the necessary properties required,” said Conway, adding, “Kunsan AB stands fearlessly in the face of a powerful and serious threat. Our warfighters deserve nothing less than the best and we are honored and humbled to be among their technology providers.”

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Heat Treat Equipment Manufacturer Expands to Broaden Aerospace Supply

March 18, 2019 / AEROSPACE HEAT TREAT, AEROSPACE HEAT TREAT NEWS, FEATURED NEWS

Source: Lancaster Eagle-Gazette

A heat treating equipment manufacturer based in Carroll, Ohio, recently announced plans to expand its facility and broaden its capability to produce furnaces for aerospace manufacturers equipping in-house heat treat operations.

Delta H Technologies LLC’s investments will cover the purchase of machinery and equipment for the design and production of furnaces for aerospace components. The expansion confirms the company’s nearly 30-year commitment to providing state-of-the-art heat treat equipment manufacturing to keep pace with the growth in aerospace technology and production.

“Richard Conway, director and chief technology officer, started the company in 1990 while attending Ohio State University to get his bachelors of science in industrial engineering. He did maintenance and tuning work for industrial furnaces and ovens. . . . Richard’s wife, Mary Conway, is a retired teacher who taught honors chemistry and physics at Pickerington North High School. And she was the one who came up with the name Delta H as it is a math symbol for change of heat.” ~ Lancaster Eagle-Gazette

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Richard Conway