test 1

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Hole punching in sheet material, drilling, spot welding

Identify which of the following applications are point‑to‑point and not continuous path operations (three correct answers):

putting polymers into the pores of a PM part, soaking oil by capillary action into the pores of a PM part

Impregnation refers to which of the following (two best answers):

cartesian coordinates

The standard coordinate system for numerical control machine tools is based on which one of the following

part program, the machine control unit, processing equipment

The three components of a NC system are (three correct answers):

outside rounded corners, side holes, threaded holes

Which of the following design features would be difficult or impossible to achieve by conventional pressing and sintering? (three best answers):

.8Tm

Which of the following most closely typifies the sintering temperatures in PM: ( Tm = melting temperature of the metal)


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