Induction Brazing Basics

Induction Brazing Basics https://dw-inductionheater.com/induction-brazing-basics.html?feed_id=273287&_unique_id=67ddcc8c394db

Induction Brazing Machine

Induction Brazing Machine https://dw-inductionheater.com/induction-brazing-machine.html?feed_id=273142&_unique_id=67dbd95e38ccf

Brazing copper tube to brass fitting

Brazing copper tube to brass fitting https://dw-inductionheater.com/brazing-copper-tube-to-brass-fitting.html?feed_id=272794&_unique_id=67d6e793b2d58

Brazing Copper T-Pipes with Induction Heating

Brazing Copper T-Pipes with Induction Heating https://dw-inductionheater.com/brazing-copper-t-pipes-with-induction-heating.html?feed_id=271487&_unique_id=67c67b64b06ce

High frequency induction brazing steel tube to steel fitting

High frequency induction brazing steel tube to steel fitting https://dw-inductionheater.com/high-frequency-induction-brazing-steel-tube-to-steel-fitting.html?feed_id=270445&_unique_id=67b9371943a90

Induction Brazing Copper T Pipe With Induction Heating Machine

Induction Brazing Copper T Pipe With Induction Heating Machine https://dw-inductionheater.com/induction-brazing-copper-t-pipe-with-induction-heating-machine.html?feed_id=270300&_unique_id=67b73cd74f87b

High Frequency Brazing Equipment

High Frequency Brazing Equipment https://dw-inductionheater.com/product/high-frequency-brazing-equipment?feed_id=267429&_unique_id=67915ca0cb74b

induction brazing and soldering technology

induction brazing and soldering technology https://dw-inductionheater.com/induction-brazing-and-soldering-technology.html?feed_id=267226&_unique_id=678eb2eef02ec

induction brazing carbide tip onto steel head teeth

induction brazing carbide tip onto steel head teeth https://dw-inductionheater.com/induction-brazing-carbide-tip-onto-steel-head-teeth.html?feed_id=263891&_unique_id=6763315409583

Induction Brazing Stainless Steel Tools

Induction Brazing Stainless Steel Tools https://dw-inductionheater.com/product/induction-brazing-stainless-steel-tools?feed_id=261890&_unique_id=67463739e8521

Induction Brazing Copper

Induction Brazing Copper https://dw-inductionheater.com/product/induction-brazing-copper?feed_id=261861&_unique_id=67458e6796add

High frequency brazing heater

High frequency brazing heater https://dw-inductionheater.com/product/high-frequency-brazing-heater?feed_id=256525&_unique_id=66fd0c20a2597

Induction Brazing Machine

Induction Brazing Machine https://dw-inductionheater.com/product/induction-brazing-machine?feed_id=256438&_unique_id=66fbbab6b3636

High Frequency Induction Brazing Diamond Inserts

High Frequency Induction Brazing Diamond Inserts Objective: Induction Brazing diamond inserts to a steel drilling ring Material : • steel ring and diamond inserts • Braze shim preform • Flux Temperature :1300 – 1350 (700 – 730) °F (°C) Frequency :78 kHz Equipment: DW-HF-15kW, induction heating system, equipped with a remote heat station containing two 0.5 μF capacitors (total 0.25 μF) An induction heating coil designed and developed specifically for this application. Process: A multi-turn, internal-external helical coil (A) is used to generate the required heating pattern. Initial tests on the ring alone determine system tuning. Flux is applied to the part and the braze shims are inserted into the counter-bored holes (B). This is followed by the synthetic diamonds. The part is loaded into the coil and weight is placed onto the diamonds (C). RF Induction Heating power is applied until the braze flows. The power is turned off and the part air cools to room temperature. Results/Benefits • reduced ring warping compared to furnace induction heating • decreased cycle time due to reduced ramp-up and cooldown times https://dw-inductionheater.com/high-frequency-induction-brazing-diamond-inserts.html?feed_id=253269&_unique_id=668cb891a1675

Brazing Brass To Copper With Induction

Brazing Brass To Copper With Induction Objective: To braze brass end-connectors to copper tubes used in aircraft assembly air lines Material brass end connectors, copper tubes of different diameters Temperature 1400 ºF 750°C Frequency 350 kHz Equipment DW-UHF-4.5KW induction heating system, including a three turn helical induction coil using two 0.33μF capacitors (total 0.66μF) Process For smaller diameter parts, flux is applied to the entire part and the copper tube to brass joint is assembled using brazing preforms (allowing for the same amount of braze in each joint). The assembly is placed in the coil and heated for 20-30 seconds reaching a temperature of 1400°F. For larger copper tube assemblies, the same process is used, but the braze alloy is stick-fed to the joint to prevent the alloy from flowing out of the joint. A foot switch control is recommended to enable better control of the process. Results/Benefits Economy: Power is consumed during the heating only Consistency: the results of braze joints are repeatable and uniform https://dw-inductionheater.com/brazing-brass-to-copper-with-induction.html?feed_id=251408&_unique_id=667ade3ae905e

induction brazing and soldering technology

HLQ Induction heating systems are value added systems that can fit directly into the manufacturing cell, reducing scrap, waste, and without the need for torches. The systems can be configured for manual control, semi-automated, and all the way up to fully automated systems. HLQ induction brazing and soldering systems repeatedly provide clean, leak-free joints for a wide range of parts including fuel lines, heat exchangers, gas distributors, manifolds, carbide tooling, and more.

Principles of Induction Brazing & Soldering

Brazing and soldering are processes of joining similar or dissimilar materials using a compatible a filler material. Filler metals include lead, tin, copper, silver, nickel and their alloys. Only the alloy melts and solidifies during these processes to join the work piece base materials. The filler metal is pulled into the joint by capillary action. Soldering processes are conducted below 840°F (450°C) while brazing applications are conducted at temperatures above 840°F (450°C) up to 2100°F (1150°C).

The success of these processes depends upon the assembly’s design, clearance between the surfaces to be joined, cleanliness, process control and the correct selection of equipment needed to perform a repeatable process.

Cleanliness is ordinarily obtained by introducing a flux which covers and dissolves dirt or oxides displacing them from the braze joint.

Induction Brazing Filler Materials

Induction Brazing filler metals can come in a variety of forms, shapes, sizes and alloys depending on their intended use. Ribbon, preformed rings, paste, wire and preformed washers are just a few of the shapes and forms alloys that can be found.

The decision to use a particular alloy and/or shape is largely dependent on the parent materials to be joined, placement during processing and the service environment for which the final product is intended.

Many operations are now conducted in a controlled atmosphere with a blanket of inert gas or combination of inert / active gasses to shield the operation and eliminate the need for a flux. These methods have been proven on a wide variety of material and part configurations replacing or complimenting atmosphere furnace technology with a just in time – single piece flow process.

Clearance Affects Strength

Clearance between the faying surfaces to be joined determines the amount of braze alloy, capillary action / penetration of the alloy and subsequently the strength of the finished joint. The best fit up condition for conventional silver brazing applications are 0.002 inches (0.050 mm) to 0.005 inches (0.127 mm) total clearance. Aluminum is typically 0.004 inches (0.102 mm) to 0.006 inches (0.153 mm). Larger clearances up to 0.015 inches (0.380 mm) usually lack sufficient capillary action for a successful braze.

Brazing with copper (above 1650°F / 900°C) requires the joint tolerance kept to an absolute minimum and in some cases press fit at ambient temperatures to assure minimum joint tolerances while at the brazing temperature.

Induction heating has proven to be a valuable aid in the joining process for many reasons. Rapid heading and precise heat control offers the possibility of localized heating of high strength components without significantly changing the material properties. It also allows for the brazing of difficult materials such as aluminum and sequential, multi-alloy brazing and soldering of close proximity joints.

Induction heating in brazing and soldering applications is readily adaptable to production line methods, permitting strategic arrangement of the equipment in an assembly line, and if necessary, heating by remote control. Frequently, induction brazing and soldering permits a reduction in the require number of part fixtures, with the minimal heating of the fixtures increasing life span and maintaining accuracy in alignment of the components to be joined. Since operators need not guide the induction heating source, both hands are left free to prepare assemblies for joining.

HLQ induction brazing equipment delivers quality, consistency, configurable throughput, and quick change-over tooling for various production needs. The Radyne induction brazing and soldering product line offers standard solutions for brazing:

Aluminum

Copper

Brass

Stainless steel

Carbide

And more…

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