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Topic: Brazing

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	Welding, soldering, and brazing workers
		Brazing produces a stronger joint than does soldering, and often is used to join metals other than steel, such as brass.
		Skilled welding, soldering, and brazing workers generally plan work from drawings or specifications or use their knowledge of fluxes and base metals to analyze the parts to be joined.
		Employment of welding, soldering, and brazing workers is expected to grow more slowly than average for all occupations over the 2004-14 period.
	stats.bls.gov /oco/ocos226.htm (2228 words)

	Welding and Brazing Capability Brief
		Brazing is an enabling technology for next-generation, metal-ceramic joints for hermetic military and commercial electro-mechanical devices.
		Special facilities are used to determine selected properties of braze alloys, including microstructural and elevated temperature properties.
		Sandia recently initiated a comprehensive effort to incorporate the fundamental physics of braze materials and processes into different thermal, fluid flow, and structural models to predict macro- and micro-responses during brazing.
	www.sandia.gov /materials/sciences/factsheets/WeldingBrazing.html (644 words)

	Brazing Guide
		Brazing is a method of joining two pieces of metal together with a third, molten filler metal.
		Brazed joints have great tensile strength – they are often stronger than the two metals being bonded together.
		Brazed joints repel gas and liquid, withstand vibration and shock and are unaffected by normal changes in temperature.
	www.inductionatmospheres.com /brazing.html (290 words)

	The Brazing Book
		And we highlight the many people and industries who are now using brazing wherever possible to increase their manufacturing efficiencies.
		Section One, "The Idea of Brazing," explains exactly what brazing is, where to use it, and how to perform it properly.
		Section Two, "Brazing in Action," presents detailed photographic case histories illustrating some of the many applications in which brazing is used today.
	www.handyharmancanada.com /TheBrazingBook/bbook.htm (261 words)

	Aufhauser - Brazing / Soldering Flux
		There are also special fluxes for brazing tungsten carbide, stainless steel brazing, induction brazing, brazing aluminum bronze, manufacturing flux coated rods, reducing red staining on brass and brazing refractory metals.
		A powder flux for brazing and welding aluminum.
		Flux11 is active between 1500 ºF and 2000 ºF. Joints are bright, clean, strong and free from porosity, owing to the scavenging action of the flux.
	www.brazing.com /products/Fluxes/index_brazingflux.asp (687 words)

	Brazing & Soldering Products \| Sil-Fos
		Brazing - The AWS defines brazing as a group of joining processes that produce coalescence of materials by heating them to the brazing temperature and by using a filler metal (solder) having a liquidus above 840°F (450°C), and below the solidus of the base metals.
		Brazing is used to join copper tubing to return bends, copper tubes to headers and fins, and tube bundles to shells.
		The brazing process consists of the broad heating of the base metals to the point where the filler metal, applied to the joint area, will be melted and drawn by capillary action through the entire joint.
	www.silfos.com /htmdocs/product_support/faq.html (1132 words)

	Society of American Silversmiths - How to Select a Brazing Flux
		Brazing joins similar and dissimilar materials by heating them in the presence of filler metal having a liquidus above 840º F and below the solidus of the base material.
		To braze ferrous and nickel alloys, two flux types can be used: silver-brazing or high-temperature fluxes.Which of the two is better depends on base and filler material type, brazing conditions, and cost.
		To braze carbides—tungsten carbide infiltrated with cobalt to impart high strength and toughness—coat with boron-modified fluxes and fill the joint with silver-brazing alloys containing nickel.
	www.silversmithing.com /1flux.htm (1691 words)

	Brazing, Brazing Alloys, Brazing Filler Metals, Wall Colmonoy Dayton
		Brazing is broadly defined as a group of joining processes that occur above 840 degrees F (400 degrees C) and below the melting point of the base metal.
		Additionally, brazing produces coalescence by the melting and subsequent resolidification of a filler metal or brazing alloy in the very narrow space between surfaces to be joined.
		Vacuum brazing is brazing in a furnace using a vacuum atmosphere.
	www.wallcolmonoy.com /brazing.htm (512 words)

	Brazing Shop - Southern California
		Brazing is performed at relatively lower temperatures than welding, reducing the possibility of warping, overheating or melting the metals being joined.
		Brazing, as we've seen, uses the principle of capillary action to distribute the molten filler metal between the surfaces of the base metals.
		If you have a number of assemblies to braze and their configuration is too complex for self-support or clamping, it may be a good idea to use a brazing support fixture.
	www.certifiedmetalcraft.com /brazing.htm (983 words)

	Ceramic Brazing
		Brazing is a liquid phase process that is particularly well suited to preparing joints and seals, and is an established technique for the joining of ceramics.
		The dictionary definition of brazing is stated a ‘the joining of two pieces of metal by fusing layer of brass or spelter between the adjoining surfaces’, and is probably a derivation of a 16th century French word meaning ‘to burn’.
		Active braze alloys are constantly undergoing changes and modification in composition to meet the increasing requirements to permit metals to be joined to ceramics without the need for metallisation of the ceramic surface.
	www.azom.com /details.asp?ArticleID=1079 (2020 words)

	Basic Brazing Information For Bicycle Builders (Site not responding. Last check: )
		Brazing stainless steel takes more practice than brazing ordinary steels, and in some cases special filler alloys are needed to prevent corrosion between the filler metal and the base metal.
		The alloy is 55 to 57 percent silver, 21 to 23 percent copper, 15 to 19 percent zinc, and 4.5 to 5.5 percent tin.
		To really learn to braze your best option is to find a course in brazing at a local community college or trade school, or to find a bicycle frame builder who will teach you for a fee.
	www.phred.org /~josh/build/brazing.html (1788 words)

	Byron Products offers welding, laser and water jet cutting and drilling, cnc machining, thermal spray, silver plating ... (Site not responding. Last check: )
		Brazing is a lower temperature process than welding, where intermetallics are formed to create a bond, but still over 350 degrees C. The filler material typically has a much lower melting point than the bonded surfaces.
		Brazing in a high vacuum environment provides the most process control and produces the cleanest parts, free of any oxidation or scaling.
		Brazing is typically done with a torch or in a furnace.
	www.byronproducts.com /brazing.html (239 words)

	Silver Brazing
		No grinding or polishing of the brazed joint is required, only that the flux and some oxidation need to be cleaned away before the part is put into service.
		There are a number of issues to consider before, during and after the brazing process that are so important to good brazing joinery that they are expressed her as principles.
		When brazing a tubular or bolster joint keep in mind that the joint clearance that you are trying to achieve happens at brazing temperature, not at ambient temperature.
	www.beerbarian.com /homebrew/brazing (2325 words)

	MachineDesign.com: When Brazing Beats Welding (Site not responding. Last check: )
		Brazing filler materials come in a wide range of compositions, shapes, and sizes to suit most applications.
		Brazing differs from welding in that the temperature is considerably lower and does not melt the base metals.
		Brazing requires no manual tracing, and filler metal is drawn equally well into straight, curved, or irregular joint configurations.
	www.machinedesign.com /ASP/viewSelectedArticle.asp?strArticleId=57678&strSite=MDSite&catId=0 (1481 words)

	Copper.org: Automotive - Cuprobraze: Picking the Right Brazing Furnace
		Because the temperature of brazing is much higher than that of soldering, an inert atmosphere is needed to prevent oxidation of the parent and filler materials.
		The governing factor for the brazing cycle is the brazing of the tube-to-header joints.
		The effect of the brazing cycle on the tube-to-header joints cannot be seen by the naked eye.
	www.copper.org /applications/automotive/cuprobraze/cuprobraze-22.html (1559 words)

	CRA Brazing
		Brazing is defined as the joining of metals using a filler metal whose melting temperature is less than that of the base material but over 840°F (449°C).
		Brazing alloys containing large amoungs of copper should be treated with caution, especially if used to braze cobalt- and iron-base alloys.
		Nickel-base brazing alloys, for instance, are commonly used in conjunction with vacuum furnaces, in high purity argon atmospheres or in hydrogen (reducing) atmospheres.
	www.haynesintl.com /CRAfab/CRAbrazing.htm (759 words)

	Brazing Process
		Brazing is a welding process in which an intermetallic solution is formed between the base metal and the filler metal.
		A powdered chemical compound, called flux, is used to prevent the formation of oxides and to allow the bronze to stick to the base metal.
		Since bronze melts and burns at a lower temperature than steel or cast iron, it is extremely important that the heat of the base metal be kept low- not over a cherry red.
	iaa.umd.edu /walls/enbe200/Will/BrazingProcess.htm (313 words)

	brazing
		Brazing is a welding process that allows the joining of similar or dissimilar metals by using a third metal with a lower melting point as the “glue.” In brazing, a thin film of filler metal is sucked into the joints by capillary action.
		The base metal (the metals you are attempting to join) is never actually melted as in conventional welding, but the base metal must reach the proper temperature to allow molecular bonding with the filler metal.
		Since the filler material (typically bronze) melts at a relatively low temperature, brazed parts may not be put in an environment which exceeds the melting point of the filler metal.
	www.stanford.edu /group/prl/documents/html/brazing.htm (568 words)

	Atmospheric Furnace Brazing
		Brazing is the process of joining metallic materials using a molten filler metal, drawn into the joint by capillary action.
		The popularity of furnace brazing stems from the clean atmosphere used, which mostly eliminates use of fluxes and also eliminates post-braze cleaning.
		The most widely used fillers for furnace brazing are based on silver, copper, nickel and gold, the latter two being most applicable to stainless steels, and heat and corrosion resistant alloys.
	www.fiskind.com /furnace_brazing.htm (227 words)

	Brazing with Induction Heating
		Brazing is a heating process in which two or more like or unlike materials are joined together by means of another metal alloy with a lower melting point.
		Braze joints are liquid- and gas-tight, can withstand shock and vibration, are unaffected by normal temperature changes, provide good electrical conductivity and can be easily plated using conventional processes.
		If the braze is being stick fed, the parts are first brought up to temperature; then braze is introduced into the joint area by hand.
	www.ameritherm.com /overview_brazing.php (553 words)

	Ameritherm's Brazing Joints Guide
		While brazing with induction heating, the importance of cleanliness, degreasing as well as the removal of any oxide films on the surface of the parts can not be over-stressed.
		The brazing operation should be such that the parts to be joined are heated uniformly at the joint areas.
		Whenever using braze rings they should be positioned either partly or wholly in a chamfered recess so that they are shielded from direct induction heating.
	www.ameritherm.com /brazing_guide.php (500 words)

	Quality Steel’s brazing services — permanent, strong metal joints
		Brazing can be used to assemble a diverse array of products, from tank blades for the defense industry, to cover plates for land-based turbines, to controlled parts for aircraft engines and pneumatic tools for the construction industry.
		Brazing also creates a smooth, even appearance in the joint that contributes to a product’s marketability and minimizes the costly need for finishing once the process is complete.
		Brazing is an excellent choice for joining ferrous metals such as stainless steel with non-ferrous metals such as copper.
	www.qualitysteeltreating.com /brazing/whybraze.asp (422 words)

	What is Brazing?
		Brazing joins two pieces of base metal when a melted metallic filler flows across the joint and cools to form a solid bond.
		Similar to soldering, brazing creates an extremely strong joint, usually stronger than the base metal pieces themselves, without melting or deforming the components.
		Braze, like solder, comes in a stick, disc, or wire, depending on your preference or the shape of the joint.
	www.wisegeek.com /what-is-brazing.htm (425 words)

	Brazing
		Below is some information related to brazing that you may find helpful.
		Some of the literature is in PDF format.
		If you would like more information about any of these documents, please call us at 800-654-4567 code 206 or send us an e-mail.
	www.airproducts.com /Metals/Brazing.htm (102 words)

	IX. Welding and Brazing Qualifications - Codes & Standards
		This Section contains rules relating to the qualification of welding and brazing procedures as required by other Code Sections for component manufacture.
		It also covers rules relating to the qualification and requalification of welders, brazers, and welding and brazing operators in order that they may perform welding or brazing as required by other Code Sections in the manufacture of components.
		Welding and brazing data cover essential and nonessential variables specific to the welding or brazing process used.
	www.asme.org /Codes/IX_Welding_Brazing.cfm (127 words)

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