Vacaero

Manufacturers of heat treating and brazing vacuum furnaces and controls, complete hot zone and vacuum furnace retrofits, thermal spray coatings, plasma, HVOF and paint coating services.

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“What’s Hot!” Newsletter

Newsletter Mission Statement

Keeping pace with the development of new technologies has always been one of VAC AERO’s main concerns. Given our role as a leader in vacuum heat treating and special processing, the aim of our Newsletter is (1) to facilitate discussion among our customers, technical and educational communities and suppliers on a variety of metallurgical issues, processes, technologies and equipment (2) to promote, collaborate and help others in their search for solutions on important issues in the practice and application of heat treating, metallurgy & surface engineering, (3) to enhance ongoing innovation capability of vacuum furnace engineering and component design and (4) to recognize early achievement in our field by encouraging promising younger individuals working in educational research.

Links to Newsletter Archives Since 2007

Metal Expansion Rates – How to meaningfully use them in brazing – by Dan Kay

Braze Welding (BW) — A New Expanded Definition is Needed – by Dan Kay

An Old High-Temp Differential-Expansion Problem – by Dan Kay

Feed BFM From One Side, Inspect On Other Side – by Dan Kay

Shell & Tube Heat Exchangers — Methods to Seal Tube-to-Header Joints – by Dan Kay

Vacuum Gauges – by VAC AERO International

What Causes “Spatter” of BFM in Furnace Brazing? – by Dan Kay

Vacuum Valves – Types and Operation – by VAC AERO International

The Nadcap Accreditation Process – by VAC AERO International

Can Cadmium and Zinc Be Used in Brazing – by Dan Kay

Brazing-Drawing Challenge – Part 2 (Answers) – by Dan Kay

The Importance of Vacuum Furnace Maintenance – by Dan Herring

Brazing-Drawing Challenge – by Dan Kay

Vertical Oil Quench Vacuum Furnace Overview – by VAC AERO International

Temperature Uniformity Survey (TUS) Fixturing – by Dan Kay

Overview of a Vertical Gas Quenching Vacuum Furnace – by VAC AERO International

“Dummy-blocks” used in Brazing Furnaces – by Dan Kay

Seven (7) Very Important Tips for Improving Vacuum Performance and Operation – by VAC AERO International

Controlled “Heat-down” For Vacuum Brazing – by Dan Kay

Magnesium (Mg) Vapor in Vacuum-Furnaces Used for Brazing Aluminum Components – by Dan Kay

Vacuum Furnace Safety – by VAC AERO International

Don’t Vacuum-Braze Metals Containing Zinc – by Dan Kay

Batch and Continuous Furnaces – by VAC AERO International

Can Brazing Stop-Off Usage be Abused? – by Dan Kay

Update on Vacuum Furnace Gauges – by VAC AERO International

Are Recessed Braze-Fillets Okay? – by Dan Kay

Instrumentation and Process Control in Vacuum Furnaces – by VAC AERO International

Revisiting Refrigeration of Brazing Paste. Is Refrigeration Really Necessary? – by Dan Kay

Process Applications Run in Vacuum Furnaces – by VAC AERO International

Vacuum Brazing of EGR Coolers – by Dan Kay

Vacuum Systems for Composite Manufacturing – by VAC AERO International

Definitions: Vacuum Terms, Related Terminology – by Alan Charky, VAC AERO International

Don’t ever use a Brazing Paste-flux when Vacuum Brazing! – by Dan Kay

Torricelli’s Importance in Vacuum Brazing History – by Dan Kay

Maintenance of Vacuum Furnaces – by VAC AERO International

Vacuum Vapor Degreasing – by VAC AERO International

Vacuum Furnace Heat Exchangers: Design, Function & Factors Affecting Performance – by VAC AERO International

Degreasing (oil removal) before Oxide Removal (Pickling, etc.) – by Dan Kay

An Aluminum Brazing Problem – by Dan Kay

Vacuum Furnace Heating Elements – by VAC AERO International

Be sure to “Blister Test” your nickel-plating before brazing – By Dan Kay

Carbon-fiber reinforced carbon (C/C) fixturing for brazing? – by Dan Kay

Use of Graphite Composites in Hardening and Sintering Technology – by VAC AERO International

Vacuum Furnace Hot Zones: Metal and Carbon Configurations – by VAC AERO International

One More Frequently Misused Brazing Term: “Brittle” – by Dan Kay

Two Frequently Misused Brazing Terms: Passivation, and Defect – by Dan Kay

Cold Wall Vacuum Furnaces – by VAC AERO International

“Brazing Definition” – Clarification of the Terminology – by Dan Kay

2017

Essential Criteria for Brazing: Item 3a – Proper joint fit-up – by Dan Kay

A Brief Discussion of Pressure and Vacuum Levels – by VAC AERO International

Essential Criteria for Brazing: Item 3b – Proper joint fit-up and Surface Roughness concerns – by Dan Kay

Essential Criteria for Brazing: Item 4 – Proper Choice of Brazing Filler Metal (BFM) – by Dan Kay

Kay & Associates: Brazing Quiz – by Dan Kay

Essential Criteria for Brazing: Item 4a – Brazing filler metal powder used in making brazing-paste – by Dan Kay

Space Simulation Chambers – Part 1 – by VAC AERO International

Answers to the Kay & Associates Brazing Quiz – by Dan Kay

Preventive Maintenance Extends Hot-Zone Life – by VAC AERO International

Getter Materials – by VAC AERO International

Space Simulation Chambers – Part 2 – by VAC AERO International

Essential Criteria for Brazing: Item 4c – Brazing filler metal (BFM) – How much should be used? – by Dan Kay

Finding and Fixing Vacuum Leaks – by VAC AERO International

Vacuum Technology at CERN – by VAC AERO International

Essential Criteria for Brazing: Item 5 – Fixturing: Keeping weight to a minimum (Part A) – by Dan Kay

Considerations in Vacuum Vessel Design – by VAC AERO International

Vacuum Technology at CERN – Part 2 – by VAC AERO International

Essential Criteria for Brazing: Item 5 – Fixturing: Keeping weight to a minimum (Part B) – by Dan Kay

Cold Traps – by VAC AERO International

Vacuum Technology at CERN – Part 3 – by VAC AERO International

Essential Criteria for Brazing: Item 6 – Good Brazing Cycle: Use of Thermocouples in Furnace Brazing for Temperature Control (Part 1) – by Dan Kay

Vacuum Degassing of Steel – by VAC AERO International

Essential Criteria for Brazing: Item 6 – Good Brazing Cycle: Use of Thermocouples in Furnace Brazing for Temperature Control (Part 2) – by Dan Kay

Hot Wall Vacuum Retort Furnaces – by VAC AERO International

Essential Criteria for Brazing: Item 7 – Knowledgeable Inspection of Finished Brazed Assemblies – by Dan Kay

2016

Torch-Braze Repair of Vacuum Brazed Components – by Dan Kay

Identifying the Cause of Tool and Die Failure – by George Vander Voort

An Introduction to Vacuum Pumps – by VAC AERO International

Metallurgy for the Vacuum Heat Treater – by VAC AERO International

Stress Concentration – by Dan Kay

Conducting the Failure Examination – by George Vander Voort

Oil Sealed Rotary Vane Pumps – by VAC AERO International

Overview of Common Vacuum Furnace Equipment – by VAC AERO International

Brazing Paste Dispensing Tips – by Dan Kay

Metallography and Microstructure of Aluminum and Alloys – by George Vander Voort

Vacuum Science and Engineering – By VAC AERO International

Essential Criteria for Brazing: Item 2 – Proper cleaning—role of tumble deburring in surface-prep (Part D) – By Dan Kay

Dry Pumps: Claw Pumps – By VAC AERO International

Brazing Paste: What happens when the BFM-paste “separates”? – By Dan Kay

Dry Pumps: Screw Type – By VAC AERO International

Essential Criteria for Brazing: Item 2 – Proper cleaning—role of grit blasting in surface-prep (Part C) – By Dan Kay

Vacuum Pump Maintenance – by VAC AERO International

Discolored Work in a Vacuum Furnace – The Heat Treat Community Answers the Clarion Call – By Dan Herring

Electroless Nickel Plating as a Brazing Filler Metal – By Dan Kay

Vacuum Pump Oil: The “Circulatory System” of the Vacuum Furnace – By VAC AERO International

Essential Criteria for Brazing: Item 2 — Proper Cleaning/handling means wearing gloves (Part B) – By Dan Kay

The Fundamentals of Vacuum Theory – by VAC AERO International

Essential Criteria for Brazing: Item 1 — Proper Cleaning – By Dan Kay

Roots Blowers (aka Booster Pumps) – by VAC AERO International

Essential Criteria for Brazing: Item 1 — Proper Design for Brazing – By Dan Kay

Microstructure of Nitrided Steels – By George Vander Voort

2015

Brazing Filler Metal (BFM) “Certification of Conformance” – Have you ever had a problem with one? – by Dan Kay

Safety in the Metallography Laboratory – by George Vander Voort

Oil for Vacuum Pumps – by Howard Tring

Tips for Selecting Vacuum Furnace Equipment – by VAC AERO International

Braze Fixturing via Tack-welding — the Good and the Bad! – by Dan Kay

Use of the Scanning Electron Microscope in Failure Analysis – by George Vander Voort

Calculating Evacuation Time – by Howard Tring

Gas-quenching when vacuum-brazing – any dangers? – by Dan Kay

Metallographic Imaging Modes – by George Vander Voort

Maintaining Oil Diffusion Pumps – by Howard Tring

The Interlamellar Spacing of Pearlite – by George Vander Voort

Gas Ballasting of Mechanical Oil Sealed Rotary Vacuum Pumps – by Howard Tring

Dry Lubricants for Vacuum Service – by VAC AERO International

Braze Inspection – Look for Concave Fillets – by Dan Kay

Deformation and Annealing of Cartridge Brass – by George Vander Voort

The Use of Molybdenum in Vacuum Furnace Applications – by VAC AERO International

Removing Magnesium Buildup in Aluminum-brazing Vacuum Furnaces – by Dan Kay

Metallographic Procedures for Cast Irons – by George Vander Voort

The Use of Tungsten in Vacuum Furnace Applications – by VAC AERO International

Concerns re Furnace Brazing of Carbon and Alloy Steels When Using Copper Brazing Filler Metal – by Dan Kay

Measurement of the Volume Fraction of Beta Phase in Naval Brass – by George Vander Voort

Vacuum Deposition Processes – by Dan Herring

Is it okay to cross-section brazed joints for accept/reject? – by Dan Kay

Using the Control Chart Approach to Evaluate Hardness Tester Performance – by George Vander Voort

Evaporation – by Dan Herring

321 Stainless Steel — Is it a Good Choice for Brazing? – by Dan Kay

Very Low Loads in Micro-indentation Tests Must Be Avoided – by George Vander Voort

What is the Purpose of a Vacuum Pump – by VAC AERO International

Pressure Relief Valves – by VAC AERO International

Induction Brazing vs. Vacuum Brazing – by Dan Kay

Avoid Microindentation Hardness Testing at Low Loads! – by George Vander Voort

Conductance in Vacuum Pumping Systems – by VAC AERO International

Vacuum Diffusion Bonding -by Design – by Dan Herring

303 stainless steel — Is it a good choice for brazing? – by Dan Kay

What is a Normal, Uni-Modal Grain Size Distribution? – by George Vander Voort

Proper Selection and Use of Vacuum Gauges – by VAC AERO International

Cleanup of Contaminated Vacuum Furnaces – by VAC AERO International

Brazing Furnaces: Vacuum vs. Continuous-Belt – by Dan Kay

Metallographic Examination of Medical Implants – by George Vander Voort

2014-2

The Role of Lubricants in Vacuum Furnace Seals – by VAC AERO International

Erosion of Base-Metals by Brazing Filler Metals – by Dan Kay

Metallographic Examination of Bronze Bracelets from Hasanlu – by George Vander Voort

Simple Physics for the High Vacuum Processing Industry – by Howard Tring

Loading of Parts in Vacuum Furnace – by VAC AERO International

Using Titanium “Getters” in Vacuum Brazing – by Dan Kay

Propeller Shaft of the USS Monitor – by George Vander Voort

When to Use a Partial Pressure in a Vacuum Furnace – by Jeff Pritchard

Five Main Reasons for using Vacuum – by Howard Tring

Mg-gettering in Vacuum Brazing of Aluminum – by Dan Kay

Influence of the Equations Defining HV and HK on Precision – by George Vander Voort

The Oil Sealed Rotary Vane Vacuum Pumps – Background and Designs – by Howard Tring

Residual Gas Analyzers – by VAC AERO International

Dewpoint Control in Vacuum-Furnace Brazing – by Dan Kay

Fracture of a 17th Century Japanese Helmet – by George Vander Voort

A Vacuum Heat Treater’s Library – by Dan Herring

Piping Atmosphere-gas to a Brazing Furnace – by Dan Kay

Determining the Nodularity of Graphite in Ductile Iron Using ASTM E2567 – by George Vander Voort

Case Study: The Benefits of High-Pressure Gas Quenching in Dimensional Control – by Dan Herring

Surface-Roughness of Parts to be Vacuum Brazed – by Dan Kay

Martensite and the Control of Retained Austenite – by George Vander Voort

The Rotary Vane (RV) Vacuum Pump Turns 25 – by Howard Tring

A Layman’s Guide to Understanding The Theory of Gases – by Dan Herring

Braze Joint Design: How Much Overlap is Enough? – by Dan Kay

Metallographic Preparation of Titanium and Its Alloys – by George Vander Voort

Braze Joint Design: “Percentage of Voids in a Joint can Increase with Overlap Distance” – by Dan Kay

Oil Diffusion Pump Controls – by Howard Tring

Vapor Pressure and Evaporation in Vacuum Furnaces – by VAC AERO International

Braze-Fixturing Tubing/piping Using Prick-punching – by Dan Kay

Revealing Prior-Austenite Grain Boundaries – by George Vander Voort

800°F, 840°F, 450°C — Which temperature defines brazing? – by Dan Kay

Difficulties Using Standard Chart Methods for Rating Non-Metallic Inclusions – by George Vander Voort

Inlet Filters for Mechanical Vacuum Pumps – by Howard Tring

Vacuum Brazing: “Braze with the Weakest Vacuum You Can Get Away With” – by Dan Kay

Heat Treatment of Landing Gear – by D. Scott MacKenzie

Delineation and Measurement of Grain Size by EBSD – by George Vander Voort

Looking after Mechanical Vacuum Pumps – by Howard Tring

Why is a nitrogen atmosphere disallowed when nickel-brazing per AMS 2675? – by Dan Kay

Selective Etching and Quantitative Measurements Used to Assess the Thermal Exposure to the Lower Head of the Three-Mile Island Unit 2 Nuclear Reactor – by George Vander Voort

Abradable Coatings used for Gas Path Seals in Turbine Engines – by VAC AERO International

2013-2

New Considerations when Buying a Vacuum Furnace – by Alan Charky, VAC AERO International

Saving Money by Maximizing Furnace Uptime Productivity by VAC AERO International

Brazing Filler Metal Powder Mesh Size by Dan Kay

Grain Size Measurement: The Saltykov Rectangle by George Vander Voort

The Oil Sealed Rotary Vacuum Pump by Howard Tring

Backstreaming – by VAC AERO International

Isothermal Solidification – by Dan Kay

Measuring the Grain Size of Specimens with Deformed Grains – by George Vander Voort

Understanding Vacuum Measurement Units – by Howard Tring

The Famous Joint-Strength vs. Joint-Clearance Chart – by Dan Kay

Grain Size Measurements by the Triple Point Count Method – by George Vander Voort

Vacuum Gauges Used on Vacuum Furnaces – by Howard Tring

Selecting the Right Vacuum Furnace for the Job – by VAC AERO International

Stainless QC-coupons to Determine Atmosphere-Quality In Your Furnace – by Dan Kay

Metallography of Iron-Nickel Meteorites – Part 1: Background – by George Vander Voort

Dimensional Changes After Heat Treatment – by Dan Herring

304 vs. 304L – An Answer to Carbide-Precipitation Issues – by Dan Kay

Mechanical Booster Pumps for Vacuum Systems – by Howard Tring

Low-Temperature Vacuum Processing – by VAC AERO International

Two Frequently Misused Brazing Terms: “Passivation” (vs. pickling), and “Defect” – by Dan Kay

Measuring Inclusion Content by ASTM E 1245 – by George Vander Voort

Types of Backfill, Partial Pressure and Cooling Gases for Vacuum Heat Treatment – by VAC AERO International

Stainless Steel Brazing on Graphite Fixtures? – by Dan Kay

Methanol Pipeline Failure in the Canyon Express Pipeline System – by George Vander Voort

Summer Maintenance of Vacuum Systems – by Howard Tring

Are Your Hands Clean Enough to Handle Parts for Brazing? – by Dan Kay

Metallography of Iron-Nickel Meteorites – Part 2: Microstructure – by George Vander Voort

Shaft Seals for Rotating Shafts – by Howard Tring

Intergranular Oxidation (IGO) / Intergranular Attack (IGA) – by VAC AERO International

Gas Molecules and Gas Flow – by Howard Tring

A Curious Case of Part Contamination in a Vacuum Furnace – by Dan Herring

Brazing vs. Soldering – by Dan Kay

Decarburization – by George Vander Voort

Conductance and Throughput in Vacuum Pipelines – by Howard Tring

A Brief History of Vacuum Technology – by Dan Herring

Liquid Penetrant Inspection in Brazing? – by Dan Kay

Metallography of Iron-Nickel Meteorites – Part 3: Microstructure in Color – by George Vander Voort

Pressure and Throughput Distribution in Vacuum Systems – by Howard Tring

Vacuum Heat Treatment of Fasteners – by VAC AERO International

X-Ray Inspection of Brazed Joints – by Dan Kay

Obtaining Consistent Vickers Hardness at Loads ≤ 100 Grams Force – by George Vander Voort

2012-2

Important Considerations for Establishing a New Vacuum Heat Treating Capability – by Alan Charky, VAC AERO International

Use of Active Brazing Alloys (ABA) in Vacuum Furnaces – by Dan Kay

Introduction to Stereological Principles – by George Vander Voort

Pumps for High and Ultra-High Vacuum – by VAC AERO International

Centerline Eutectics in Ni-brazing – by Dan Kay

Metallographic Preparation of Tool Steels – by George Vander Voort

Tool Steel Carbides – by Dan Herring

Argon Can Be Lethal! – by Dan Kay

Revealing the Microstructure of Tool Steels – by George Vander Voort

Using Vacuum Furnaces to Achieve Lean, Green and Agile Manufacturing – by VAC AERO International

Boxing of Components – by Dan Kay

Metallography and Microstructure of Aluminum and Alloys – by George Vander Voort

Refrigeration of Brazing Paste? – by Dan Kay

Bias in Grain Size Chart Ratings – by George Vander Voort

Tips For Improving Vacuum Performance & Operation – by VAC AERO International

Can a Brazing-Flux be used in Vacuum Brazing? – by Dan Kay

Dimension Braze-Fillets on Drawings? – by Dan Kay

The Value of Color Metallographic Techniques in the Study of Welds – by George Vander Voort

Vacuum Furnace Leak-up Rates for Successful Brazing – by Dan Kay

Metallographic Procedures for Precious Metals – by George Vander Voort

Helium leak detection in vacuum brazing – by Dan Kay

Measurement of Grain Shape Uniformity – by George Vander Voort

Effect of Virtual Leaks in Vacuum Furnace Brazing – by Dan Kay

Measurement of Grain Size in Twinned FCC Alloys – by George Vander Voort

Eutectics – the good and the bad! – by Dan Kay

Grain Size Measurement: The Jeffries Planimetric Method – by George Vander Voort

Eliminating “holds” in Heating Rates During Vacuum-Brazing Cycles – by Dan Kay

Grain Size Measurement: The Heyn Intercept Method – by George Vander Voort

2011-2

Controlling Suppliers and Customers: Key to Successful In-House Brazing? – by Dan Kay

Vertical Test Specimen for Furnace Brazing – by Dan Kay

Metallography of Superalloys – by George Vander Voort

Microstructure of Ferrous Alloys – by George Vander Voort

Brazing Base Metals Containing Small Amounts of Titanium, Aluminum – by Dan Kay

Metallography of Surface Treatments and Coatings – by George Vander Voort

Shelf-Life and Expiration-Dates for Brazing Paste – by Dan Kay

Color Metallography – by George Vander Voort

Making Your Own Brazing Paste – by Dan Kay

A Layman’s View of Plasma Spray Coating Metallography – by George Vander Voort

Using a “Stop-Off” in Brazing – by Dan Kay

Identification of Phases in Stainless Steels by Etching – by George Vander Voort

Can I Use Standard Aerospace Vacuum Furnaces to Braze Aluminum? – by Dan Kay

Picric Acid – Hazards and Safe Usage – by George Vander Voort

Effect of Heating Rates on Distortion, Fracture of Assemblies Being Brazed – by Dan Kay

Microstructure of Isothermally-Treated Steels – by George Vander Voort

Can Your Suppliers Hurt Your In-house Brazing? – by Dan Kay

Metallographic Specimen Preparation for Electron Backscattered Diffraction – by George Vander Voort

Study of Selective Etching of Carbides in Steel – by George Vander Voort

Landing-Gear Heat Treatment – by Dan Herring

Wide Gap Brazing when Parts don’t Fit Together well for Brazing – by Dan Kay

Introduction to Quantitative Metallography – by George Vander Voort

2010-2

Hot Zone Selection for Vacuum Brazing of Superalloys – by Jeff Pritchard, Vac Aero International Inc.

Voids in Brazed Joints – by Dan Kay

Differential Metal Expansion & Brazing Challenge Question – by Dan Kay

Thermocouples in Furnace Brazing – by Dan Kay

Fillets in Brazing – by Dan Kay

Repair Brazing – Fixing faulty jobs and worn-out components – by Dan Kay

Liquation of Brazing Filler Metals – Good or Bad? – by Dan Kay

Honeycomb-Brazing Essentials for Successful Use As Turbine Seals – by Dan Kay

Reducing Metal-Oxides in Brazing – by Dan Kay

2009-2

Coating Gas Turbine Engine Blades Using HVOF – by Jeff Pritchard, Vac Aero International Inc.

Welding of High Strength Steel Landing Gear Components – by Jeff Pritchard, Vac Aero International Inc.

Brazing – A Great joining Process for this 21st Century! – by Dan Kay

Brazing in a Vacuum “Atmosphere” – by Dan Kay

Partial Pressure Brazing – by Dan Kay

Selecting Brazing Fixture Materials – by Dan Kay

Are the use of dead-weights for fixturing a recommended practice? – by Dan Kay

How to Determine Braze Gap-Clearances for Your Furnace – by Dan Kay

Braze Joint Design Considerations – by Dan Kay

2008-2

Buying a Vacuum Furnace: New versus Used – by Jeff Pritchard, Vac Aero International Inc.

Why Heat Treat in a Vacuum? – by Jeff Pritchard, VAC AERO International Inc.

Eutectic Melting – by Jeff Pritchard, VAC AERO International Inc.

Using Thermal Spray for Repair of Service-Damaged Parts

Vacuum Furnace Quenching Systems: External versus Internal – by Jeff Pritchard, VAC AERO International Inc.

Cleaning Practices Prior to Vacuum Heat Treating – by Jeff Pritchard, VAC AERO International Inc.

Loading Practices for Vacuum Processing – by Jeff Pritchard, VAC AERO International Inc.

Fixture Design for Vacuum Processing – by Jeff Pritchard, VAC AERO International Inc.

Temperature Uniformity Surveys – by Jeff Pritchard, VAC AERO International Inc.

Temperature Measurement in Vacuum Furnaces – by Jeff Pritchard, VAC AERO International Inc.

Maintenance Procedures for Vacuum Furnaces – by Jeff Pritchard, VAC AERO International Inc.

Vacuum Brazing Techniques – by Jeff Pritchard, VAC AERO International Inc.

Hot Zone Repair, Re-build and Retrofit – by Jeff Pritchard, VAC AERO International Inc.

2007-2

VAC AERO Launches “What’s Hot!” Newsletter

VAC AERO Develops New Hybrid Vacuum Furnace Control System

Advanced Techniques For Distortion Control During Vacuum Oil Quenching – by Jeff Pritchard, VAC AERO International Inc.

Vacuum Hardening High-Strength Steels: Oil Versus Gas Quenching – by Jeff Pritchard, VAC AERO International Inc.

Hot Zone Design for Vacuum Furnaces – by Jeff Pritchard, VAC AERO International Inc.

VAC AERO is a World Leader in the Processing of Landing Gear Components

SiC-Reinforced Aluminum Alloy Coatings Produced by Cold Spray Process

VAC AERO Operates three of the Largest Oil Quench Furnace


Manufacturers of Premier Vacuum Heat Treating Furnaces & Specialty Coating Services.

VAC AERO designs and builds vacuum furnace systems and controls with the highest quality standards for any of your specialized processing needs. From small horizontal units to large vertical models VAC AERO vacuum heat treating furnaces are ideal for a broad range of vacuum heat treatment applications of engineered materials, and specialty alloys. VAC AERO vacuum furnaces operate worldwide in diverse applications in aerospace, power generation, and other high-tech industries. VAC AERO also offers vacuum heat treating and specialty coating services to the aerospace and high-tech industries including; plasma and high-velocity Oxy-fuel (HVOF) spray coatings as well as inorganic paint and pack coatings. In business since 1959 VAC AERO operates four plants in Ontario and Quebec, Canada.

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