How Can Hot Forming with Induction Improve Production Speeds?

Consistent uniform heating with induction helps reduce scrap and process variations.

Is there a variable that falls between Warm Form and Hot Form?

yes, however the temperature achieved should not change the material properties of the metal.

Are there any limitations with bending when using hot forming?

Usually bending with hot forming is optimal.

Hot Forming

Discover the advantages of induction heating!

Induction Benefits

Meets tight production tolerances with precise localized heat to small areas creating pinpoint accuracy
Increases production rates with faster heating cycles
Reduces defect rates with repeatable, reliable heat
Eliminates variability from operator-to-operator, shift-to-shift
Maintains metallurgical characteristics of the individual metals

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Benefits

Here are the advantages of hot forming with induction heating:

springback effect is eliminated
ductility is improved
low pressure & minimal residual part stress
better grain flow & microstructure
improved mechanical properties
reduced need for post production tempering & heat treating
improved production rates with minimal defects

Expertise

Induction heating in hot forming is applied for several different purposes:

Heading - forming a head on blot, screw or rivet

Blanking - cutting a whole piece from sheet metal

Punching - cutting a hole

Slotting - cutting of elongated holes

Perforating - cutting a group of holes

Trimming - cutting away excess metal

Shearing - cutting in straight line across piece

Bending - producing single, double, straight flange, edge hem, curl or double hem bends

In order for the hot forming process to succeed, an application should be tested including the following variables. Ambrell's experienced applications engineers will provide you with the necessary advice and recommendation.

Variable	Cold Form	Warm Form	Hot Form
Temperature	ambient	400-900° F 205 - 480°C	1300-2000° F 705 - 1090°C
Die Pressure	high	lower	lowest
Stress	residual	medium	minimal
Grain Flow	good	better	best
Scaling	none	less	more