metal joining techniques full report
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
project report tiger
Active In SP
**

Posts: 1,062
Joined: Feb 2010
#1
16-02-2010, 12:50 PM



.pptx   METAL JOINING TECHNIQUES.pptx (Size: 76.59 KB / Downloads: 240)
METAL JOINING TECHNIQUES

1. WELDING
2. BRAZING
3. SOLDERING

BRAZING

IT IS A GROUP OF WELDING PROCESSES IN WHICH COALESCENCE IS PRODUCED BY HEATING TO SUITABLE TEMPERATURE ABOVE 8000F BUT BELOW THAT OF BARE METALS
TYPES OF BRAZING

1. TORCH BRAZING
2. FURNACE BRAZING
3. INDUCTION BRAZING
4. RESISTANCE BRAZING
EXOTHERMIC BRAZING

PROCESS IN WHICH HEAT REQUIRED TO MELT AND FLOW A COMMERCIAL FILLER METAL ALLOY IS GENERATED BY A SOLID STATE EXOTHERMIC CHEMICAL REACTION.
EXOTHERMIC PARAMETERS

IGNITION TEMPERATURE
REACTION DURATION
NET AVAILABLE ENERGY
IGNITION TEMPERATURE

SIGNIFIES THE TEMPERATURE AT WHICH SYSTEM INITIATES SPONTANEOUS PROPOGATIVE REACTION.
ESSENTIAL REQUIREMENT IS THAT HEAT GAINED FROM THE REACTION PLUS ANY HEAT SUPPLIED EXTERNALLY MUST BE GREATER THAN THE HEAT ENERGY ABSORBED WHEN ACTIVATING ADDITIONAL ADJACENT REACTING MOLECULES.
REACTION DURATION

RATE AT WHICH REACTANTS ARE CONSUMED AND THE PRODUCTS ARE FORMED.
CAN BE VARIED BY,
* ADDITION OF INERT MATERIALS THAT ABSORB HEAT
* ADDING A THIRD SUBSTANCE THAT REACTS AT A DIFFERENT RATE
* USING NON STOCHIOMETRIC PROPORTIONS
* VARYING POWDER PARTICLE SIZES
NET AVAILABLE ENERGY

DEFINES THE USEFUL HEAT OF ANY PARTICULAR REACTION.
EXPERIMENTALLY IT CAN BE DETERMINED BY MEASURING THE AREA BENEATH THE TIME TEMPERATURE GRAPH FOR ANY PARTICULAR REACTION.
EQUIPMENT AND PROCEDURE

SIMPLE TOOLING AND EQUIPMENT
SELECTION OF HEAT SOURCE AND BRAZE ALLOY
PARTS ARE CHEMICALLY AND MECHANICALLY CLEANED
EXTERNAL REACTION PRODUCTS ARE WASHED AWAY WITH HOT WATER
ADVANTAGES

NO EXTERNAL HEATING DEVICES ARE NEEDED
SOMETIMES NO SEPARATE FILLER METAL IS NEEDED
NO HUGE POWER REQUIREMENTS
SHORT HEATING TIMES
MINIMAL THERMAL EFFECTS DUE TO LOCALIZED HEAT
EASE OF HANDLING
REDUCED COST
INDUSTRIAL APPLICATIONS

TO BRAZE HONEYCOMB SANDWITCH PANELS
TO BRAZE INSERTS INTO PANELS LOCALLY
TO ATTACH SMALL PARTS TO LARGER STRUCTURES
IN BRAZING HYDRAULIC AND FUEL LINES IN A FUEL TANK
TO MAKE TUBING JOINTS
Reply

Important Note..!

If you are not satisfied with above reply ,..Please

ASK HERE

So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page

Quick Reply
Message
Type your reply to this message here.


Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  robots in radioactive environment full report project report tiger 14 16,622 27-04-2015, 07:00 PM
Last Post: Guest
  effect of metal coupling on rusting of iron jaseelati 0 228 05-01-2015, 03:57 PM
Last Post: jaseelati
  Pistonless Pump for Rockets full report and ppt project topics 8 10,514 15-11-2014, 04:08 PM
Last Post: mkaasees
  DRAG REDUCTION IN SHIPS USING MICROBUBBLES TECHNOLOGY full report project report tiger 4 7,478 24-03-2014, 04:27 PM
Last Post: seminar project topic
  Gas metal arc welding seminar tips 9 4,825 23-10-2013, 09:47 PM
Last Post: sydaimran
  Testing Of Bearings on Sound and Vibration Quality full report seminar class 1 2,461 09-10-2013, 03:16 PM
Last Post: Guest
  machine gun full report project report tiger 3 5,645 08-10-2013, 07:04 PM
Last Post: pc-alert
  MOLDING TECHNIQUES AND ITS MACHINES MANUFACTURERS ppt seminar projects maker 0 395 26-09-2013, 12:23 PM
Last Post: seminar projects maker
  EXPERIMENTAL STUDY OF ALUMINIUM AND STAINLESS STEEL METAL MATRIX COMPOSITE REPORT study tips 2 1,272 05-09-2013, 10:21 AM
Last Post: study tips
  micromachining full report project report tiger 4 10,107 02-09-2013, 10:10 AM
Last Post: study tips