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36 Cards in this Set
- Front
- Back
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___ melt metals use the process called melt atomization to make their powders
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low temperature
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in order, after the powders are made, the processes necessary to accomplish making a p/m part are
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blended, compacted, and sintered
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compaction of the powders can achieve nearly 98% of
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theoretical density
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high temperature melt metals use __ to make their powders
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spark atomization
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one advantage of using p/m
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high production rate
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one disadvantage of using p/m
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material cost
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No oxygen
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anaerobic
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bonding
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The joining method using an adhesive is called
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brazing
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The joining of metals using heat and a filler metal whose melting temperature is between 450 C and the melting point of the materials being joined
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carburizing
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When the gas welding process uses a flame with too much acetylene, the flame is called
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EBW (electron beam welding)
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Uses beam of electrons and uses a vacuum system
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ERW (Electron resistance spot welding)
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The welding process that uses the heat generated by electrical resistance is called this
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fillet
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The tee joint would use a weld geometry called this weld
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friction welding
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The welding method that uses a friction for energy is called
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gmaw (gas metal arc welding)
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The arc welding method that uses a continuous electrode and bottled gas is called
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gtaw (gas tungsten arc welding)
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Arc welding process that uses a tungsten non-consumable electrode
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heat affected zone (HAZ)
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The area adjacent to the weld that is affected by the weld and is usually reduced in strength is called this
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laser beam welding (LBW)
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Uses photons for energy
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neutral
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A gas flame that has the correct oxygen level is called this flame
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oxidize
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More oxygen in the flame
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SAW (Submerged arc welding)
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The arc welding method that uses flux from a hopper is called
Uses a bare, continuous, consumable electrode and flux to physically exclude the oxygen |
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soldering
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Joining of metals using heat and a filler metal whose melting temperature is below 450 C
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thermoplastic
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Reusable things (one part)
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thermoset
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An epoxy joint uses an adhesive of the type…
Two part adhesives are always of the type called |
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USW (Ultrasound welding)
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When sound energy is used as the source of energy for welding plastics, this process is used
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weld lobe
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To find the correct combination of welding time and amperage for erw welding, a diagram called this is used
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welding
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The process where two metals are permanently joined together through localized coalescence resulting from temperature, pressure, metallurgical conditions
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flame temperature, stand off, speed
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To make a good oxyfuel weld, you need three things to be correct.
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room temperature, elevated temperature, anaerobic
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Adhesives cure under conditions of
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temperature, pressure, mettalurgical conditions
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To make a weld, three conditions must be met
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welding, brazing, soldering, bonding
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Hottest first, list the four joining methods in decreasing heat order
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one part
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All thermoplastic adhesives are
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SMAW (Shielded metal arc welding)
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The electrode is coated, discrete, and consumable.
The gas is self-generated. has Flux. |
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GMAW (Gas metal arc welding)
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The electrode is bare, continuous, and consumable.
The gas is in bottles. No flux. |
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GTAW (Gas tungsten arc welding)
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The electrode is bare, continuous, and consumable and made of tungsten.
Gas in bottles. No flux. |
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SAW (Submerged arc welding)
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Electrode is Bare, continuous, consumable.
No gas. Has flux. |
