--- title: Blog | Brazing & Soldering Manufacturer | Lucas-Milhaupt (3) description: Lucas-Milhaupt has offered brazing and soldering excellence for over 65 years. We are a global provider and producer of metal joining products and services for thousands of companies worldwide. Our blog provides you with valuable brazing solutions, tips, and information that can be applied to your own applications and projects. (3) --- [![Lucas\_Milhaupt\_logo\_digital](https://blog.lucasmilhaupt.com/hubfs/Lucas_Milhaupt_logo_digital.jpg)](https://www.lucasmilhaupt.com/) - [Products](https://www.lucasmilhaupt.com/Products) - [Filler Metals](https://www.lucasmilhaupt.com/Products/Filler-Metals) - [Fluxes](https://www.lucasmilhaupt.com/Products/Fluxes) - [Pastes](https://www.lucasmilhaupt.com/Products/Pastes) - [Distribution](https://www.lucasmilhaupt.com/Products/Distribution) - [Industries](https://www.lucasmilhaupt.com/Industries) - [Aerospace](https://www.lucasmilhaupt.com/Industries/Aerospace) - [Automotive](https://www.lucasmilhaupt.com/Industries/Automotive) - [Electrical](https://www.lucasmilhaupt.com/Industries/Electrical) - [HVAC/R](https://www.lucasmilhaupt.com/Industries/HVACR) - [Medical](https://www.lucasmilhaupt.com/Industries/Medical) - [Microelectronics](https://www.lucasmilhaupt.com/Industries/Microelectronics) - [Oil and Gas](https://www.lucasmilhaupt.com/Industries/Oil-and-Gas) - [Services](https://www.lucasmilhaupt.com/Services) - [Capabilities](https://www.lucasmilhaupt.com/Services/Capabilities) - [Consulting Services](https://www.lucasmilhaupt.com/Services/Consulting-Services) - [Brazing Audits](https://www.lucasmilhaupt.com/Services/Brazing-Audit) - [Tech Support Request Form](https://www.lucasmilhaupt.com/Services/Tech-Support-Request-Form) - [Resources](https://www.lucasmilhaupt.com/Resources) - [FAQ](https://www.lucasmilhaupt.com/Resources-Library/FAQ) - [Literature](https://www.lucasmilhaupt.com/Resources-Library/Literature) - [Demo Videos](https://www.lucasmilhaupt.com/Resources-Library/Demo-Videos) - [Technical and Safety Data Sheets](https://www.lucasmilhaupt.com/Resources-Library/Technical-and-Safety-Data-Sheets) - [Brazing Academy](https://www.lucasmilhaupt.com/Brazing-Academy) - [Brazing Fundamentals](https://www.lucasmilhaupt.com/Brazing-Academy/Brazing-Fundamentals) - [Braze School and Training](https://www.lucasmilhaupt.com/Brazing-Academy/Braze-School-and-Training) - [How to Braze Aluminum](https://www.lucasmilhaupt.com/Brazing-Academy/How-to-Braze-Aluminum) - [Principles of Joint Design](https://www.lucasmilhaupt.com/Brazing-Academy/Principles-of-Joint-Design) - [Why Brazing?](https://www.lucasmilhaupt.com/Brazing-Academy/Why-Brazing) - [Metal Joining: Brazing vs. Soldering](https://www.lucasmilhaupt.com/Brazing-Academy/Metal-Joining-Brazing-vs.-Soldering) - [Metal Joining: Brazing vs. Welding](https://www.lucasmilhaupt.com/Brazing-Academy/Metal-Joining-Brazing-vs.-Welding) - [About](https://www.lucasmilhaupt.com/About) - [Center of Excellence](https://www.lucasmilhaupt.com/About/Center-of-Exellence) - [Certification](https://www.lucasmilhaupt.com/About/Certification) - [Find Locations](https://www.lucasmilhaupt.com/About/Find-Locations) - [Find a Distributor](https://www.lucasmilhaupt.com/About/Find-a-Distributor) - [News & Events](https://www.lucasmilhaupt.com/About/NewsEvents) - [History](https://www.lucasmilhaupt.com/About/History) - [SIL-FOS](https://www.lucasmilhaupt.com/About/SIL-FOS) - [Social Responsibility](https://www.lucasmilhaupt.com/About/Social-Responsibility) - [Careers](https://www.lucasmilhaupt.com/About/Careers) - [Culture](https://www.lucasmilhaupt.com/About/Culture) - [Contact](https://www.lucasmilhaupt.com/About/Contact) # Blog ## [How to Repair a Brazed Joint on Aluminum Heat Exchangers](https://blog.lucasmilhaupt.com/en-us/about/blog/braze-joint-repair-aluminum) ***Posted by Lucas-Milhaupt Brazing Experts on Jun 15, 2017*** Braze Joint Repair: Aluminum Heat Exchangers Brazing aluminum heat exchangers is a challenging task. Why? Aluminum melts at a low temperature (~1100-1200°F/593-649°C) and does not change color as it heats, so you have almost no notice before the base material melts away. This means there is a tight ... [Read More](https://blog.lucasmilhaupt.com/en-us/about/blog/braze-joint-repair-aluminum) ## [Brazing Surface Preparation: How to Clean Base Materials](https://blog.lucasmilhaupt.com/en-us/about/blog/brazing-surface-preparation) ***Posted by Lucas-Milhaupt Brazing Experts on Jun 1, 2017*** Having clean base materials is one of the Six Fundamentals of Brazing that ensure quality braze joints: 1. Good fit and proper clearance 2. Clean base materials 3. Proper flux/atmosphere 4. Proper fixturing 5. Proper heating 6. Final cleaning Why Clean Base Materials? Make sure your base materials ... [Read More](https://blog.lucasmilhaupt.com/en-us/about/blog/brazing-surface-preparation) Topics: [Brazing Fundamentals](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/brazing-fundamentals) ## [Your Industry-Specific Brazing Solutions](https://blog.lucasmilhaupt.com/en-us/about/blog/brazing-solutions-every-industry) ***Posted by Lucas-Milhaupt Brazing Experts on Apr 12, 2017*** You want brazing solutions designed for your needs – whether you are manufacturing air conditioning systems for automobiles or highly sensitive jet turbine blades or even components for satellites. Find out which brazing alloys and consumables meet your specific needs. Lucas Milhaupt has over 75 ... [Read More](https://blog.lucasmilhaupt.com/en-us/about/blog/brazing-solutions-every-industry) Topics: [Aerospace](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/aerospace), [Automotive](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/automotive), [HVAC/R](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/hvac-r), [Electrical](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/electrical), [Electronics](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/electronics) ## [Stay Current on Resistance Brazing](https://blog.lucasmilhaupt.com/en-us/about/blog/stay-current-on-resistance-brazing) ***Posted by BJ Szyjakowski on Jan 19, 2017*** The most common brazing processes include torch, induction, furnace and resistance brazing. Of these methods, resistance brazing is the least common heating method. Why? Compared to the others, it is a fast and relatively inexpensive process, but limitations in assembly geometry have restricted its ... [Read More](https://blog.lucasmilhaupt.com/en-us/about/blog/stay-current-on-resistance-brazing) ## [Considerations for Carbide Brazing](https://blog.lucasmilhaupt.com/en-us/about/blog/carbide-brazing) ***Posted by Lucas-Milhaupt Brazing Experts on Oct 19, 2016*** Carbide inserts can provide superior wear resistance and prolonged life in cutting and wear processes. These mechanical properties make carbides useful for mining tools, cutting tools, wear parts and other applications. Let's look at the joining process used to attach carbides to their holders. For ... [Read More](https://blog.lucasmilhaupt.com/en-us/about/blog/carbide-brazing) Topics: [Oil & Gas](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/oil-gas), [Carbide](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/carbide) ## [Vacuum Brazing Success](https://blog.lucasmilhaupt.com/en-us/about/blog/vacuum-brazing) ***Posted by Lucas-Milhaupt Brazing Experts on Jul 28, 2016*** The most common brazing processes include torch, induction, resistance and furnace brazing. In furnace brazing, filler metal in the form of pre-forms or paste is placed onto an assembly to be joined. This type of brazing includes either a protective atmosphere or the evacuation of the surrounding ... [Read More](https://blog.lucasmilhaupt.com/en-us/about/blog/vacuum-brazing) Topics: [High Purity Vacuum Tube Grade](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/high-purity-vacuum-tube-grade), [Furnace](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/furnace) ## [Stop-Off Helps Restrict Braze Alloy Flow](https://blog.lucasmilhaupt.com/en-us/about/blog/restrict-braze-alloy-flow) ***Posted by Lucas-Milhaupt Brazing Experts on Jul 5, 2016*** Because of tolerances, aesthetics or joint design, you sometimes need the flow of braze alloy to be restricted-to stop its flow or keep it off a surface. Capillary dams are often designed into these parts to limit braze alloy flow. A capillary dam is when the clearance is increased to a point where ... [Read More](https://blog.lucasmilhaupt.com/en-us/about/blog/restrict-braze-alloy-flow) Topics: [Flux](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/flux) ## [Flux Removal: Post-Braze Cleaning](https://blog.lucasmilhaupt.com/en-us/about/blog/flux-removal-post-braze) ***Posted by Lucas-Milhaupt Brazing Experts on May 16, 2016*** Depending on your brazing process, you may need to perform post-braze joint cleaning to remove residual flux. This step can be crucial since most fluxes are corrosive. Post-braze cleaning is one of the Six Fundamentals of Brazing\*. Reasons to Remove Flux Let's examine five reasons why post-braze ... [Read More](https://blog.lucasmilhaupt.com/en-us/about/blog/flux-removal-post-braze) Topics: [Flux](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/flux), [Brazing Fundamentals](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/brazing-fundamentals) ## [Copper Tubing Braze Alloy Usage Calculator](https://blog.lucasmilhaupt.com/en-us/about/blog/calculate-braze-alloy) ***Posted by Lucas-Milhaupt Brazing Experts on Apr 6, 2016*** The new Lucas-Milhaupt® calculator makes it easy and convenient to estimate the amount of braze alloy or solder alloy required for plumbing or HVACR applications. How can you use this online tool? Increase accuracy of estimating the amount of alloy you need-in readily available sizes-for common ... [Read More](https://blog.lucasmilhaupt.com/en-us/about/blog/calculate-braze-alloy) Topics: [HVAC/R](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/hvac-r), [Copper](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/copper) ## [What Can Lucas-Milhaupt Technical Services Do for You?](https://blog.lucasmilhaupt.com/en-us/about/blog/lucas-milhaupt-technical-services) ***Posted by Lucas-Milhaupt Brazing Experts on Feb 29, 2016*** Companies are facing tremendous economic pressure today, which requires renewed focus on core business practices. Your goals may include increasing workforce skills, improving manufacturing processes and building more robust products while reducing costs associated with labor, field failure and ... [Read More](https://blog.lucasmilhaupt.com/en-us/about/blog/lucas-milhaupt-technical-services) Topics: [Brazing Tips](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/brazing-tips) [Previous](https://blog.lucasmilhaupt.com/en-us/about/blog/page/2) [All posts](https://blog.lucasmilhaupt.com/en-us/about/blog/all) [Next](https://blog.lucasmilhaupt.com/en-us/about/blog/page/4) ### Subscribe to Our Blog to Stay Current on All Things Brazing! ### Recent Posts ### Posts by Tag - [Brazing Fundamentals (23)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/brazing-fundamentals) - [HVAC/R (18)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/hvac-r) - [Brazing Tips (12)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/brazing-tips) - [Copper (12)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/copper) - [Flux (12)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/flux) - [Torch (10)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/torch) - [Aluminum (8)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/aluminum) - [Automotive (6)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/automotive) - [Electrical (6)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/electrical) - [Furnace (5)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/furnace) - [High Purity Vacuum Tube Grade (5)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/high-purity-vacuum-tube-grade) - [Aerospace (4)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/aerospace) - [Electronics (4)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/electronics) - [Oil & Gas (4)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/oil-gas) - [Solder (3)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/solder) - [High Silver (2)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/high-silver) - [Low Silver (2)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/low-silver) - [Medical (2)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/medical) - [Stainless Steel (2)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/stainless-steel) - [Steel (2)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/steel) - [Carbide (1)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/carbide) - [Nickel (1)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/nickel) See all [![Lucas Milhaupt Join with the Best Logo RGB](https://blog.lucasmilhaupt.com/hs-fs/hubfs/Lucas%20Milhaupt%20Join%20with%20the%20Best%20Logo%20RGB.png?width=276&height=93&name=Lucas%20Milhaupt%20Join%20with%20the%20Best%20Logo%20RGB.png)](https://www.lucasmilhaupt.com/) 4850 S. 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