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Man Poo > H- PM and SPINNING > Flashcards

H- PM and SPINNING Flashcards

1
Q

A sheet metal process used to create circular axisymmetric shapes

A

SPINNING

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2
Q

Mold with the shape of the internal dimensions and configuration of the desired final part

A

MADREL

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3
Q

Rotates the MANDREL at the necessary speed

A

SPINDLE

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4
Q

Clamps the BLANK cut from the sheet metal against the end of the mandrel

A

TAIL STOCK

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5
Q

Pushes the BLANK over the MANDREL to create the shape

A

ROLLER TOOL

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6
Q

The BLANK remains of constant thickness

A

CONVENTIONAL SPINNING

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7
Q

The BLANK is thinned and the diameter decreases

A

SHEAR SPINNING

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8
Q

Metal with thickness of 1/4 in or more

A

PLATE

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9
Q

Faster than SPINNING
Leave longitudinal marks

A

DEEP DRAWING and FORMING

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10
Q

Technique that uses explosions to force metal into dies and molds

A

EXPLOSION FORMING

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11
Q

EXPLOSION FORMING ADVANTAGES

A

Shockwaves
Deadens Sound
Cools
Suppresses Flash
Catches Debris

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12
Q

Shaping of sheet metal using electromagnetic fields

A

MAGNETIC PULSE FORMING/ INDUCTIVE PULSE FORMING

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13
Q

Cup which metal is poured through to steady the stream and prevent splashing

A

TUNDISH

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14
Q

Powdered metal is placed in a DIE CAVITY with the cross section of the desired part, and it is punched by a PRESS

A

COMPACTION

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15
Q

Powdered metal has been fully PRESSED and highly porous. Intense stress is generated at small points of contact causing limited fusion between particles.
GREEN MEANS INCOMPLETE

A

GREEN COMPACT (GREEN STATE)

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16
Q

Powdered metal is placed in a flexible rubber bag and then sealed inside a chamber. Pressurized fluid applied in all directions uniformly densifies the bag.

A

ISOSTATIC COMPACTION (to make stock material for PM)

17
Q

Added to metals like Tungsten Carbide to help it stay in a GREEN COMPACT STATE

A

POLYMER BINDER

18
Q

GREEN COMPACT is placed in a SINTERING OVEN to reduce the porosity

A

SINTERING

19
Q

Steps of SINTERING

A

PREHEAT ZONE
HOT ZONE (MAX TEMP -> 1/2 Melting Point)
COOLING ZONE

20
Q

Pores are filled with fluid after air is drawn out in a vacuum chamber (OIL IMPREGNATED BEARINGS) (Surface tension prevents oil from coming out)

A

IMPREGNATION

21
Q

MEDICAL IMPLANTS

A

TITANIUM

22
Q

Which metals cannot be used for this technique?

A

TUNGSTEN (high melting point)
TITANIUM (reactive when molten)

23
Q

Types of MAGNETIC PULSE FORMING

A

MAGNETIC PULSE BULDGING
MANGETIC PULSE CRIMPING
MAGNETIC PULSE FORMING

Man Poo (31 decks)

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