Manufacturing Technology I an der RWTH Aachen | Karteikarten & Zusammenfassungen

Lernmaterialien für Manufacturing Technology I an der RWTH Aachen

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TESTE DEIN WISSEN

How is the working fluid called, that electrically insulates the electrodes?

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TESTE DEIN WISSEN

Dielectric fluid

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TESTE DEIN WISSEN

Define cutting wedge and name three functions of it.

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TESTE DEIN WISSEN

Cutting wegde can be found on every tool used for machining with geometrically defined cutting edges.


Its main functions are:

Chip formation

Surface formation

Separation/Cutting of material

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TESTE DEIN WISSEN

In addition to the kinematic process parameters (cutting speed vc, workpiece speed vw, depth of cut ae, etc.), name three possibilities to influence the process results during grinding.

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TESTE DEIN WISSEN

Coolant

Grinding wheel specifications


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TESTE DEIN WISSEN

Name the three categories presented in which component characteristics can be classified in order to describe form deviations. Also name a component characteristic for each category.

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TESTE DEIN WISSEN

Macrogeometry - size, shape, position

Microgeometry - surface quality

Near surface zone - hardness

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TESTE DEIN WISSEN

Name the two most essential parameters in laser material processing.

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Exposure time and intensity

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TESTE DEIN WISSEN

Name the four wear mechanisms that can occur on forming tools.

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TESTE DEIN WISSEN

Abrasion

Adhesion

Surface fatigue

Tribochemical wear

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TESTE DEIN WISSEN

What is the technical term for the working fluid?

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TESTE DEIN WISSEN

Electrolyte

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TESTE DEIN WISSEN

How severe is the tool wear during ECM?

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TESTE DEIN WISSEN

Almost zero

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TESTE DEIN WISSEN

Name two advantages and two disadvantages of electrochemical machining.

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TESTE DEIN WISSEN

Advantages:

Almost zero wear of tool

High productivity in serial production

Complex geometry machining possible


Disadvantages:

Costly

Complex process set up

High energy consumption

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TESTE DEIN WISSEN

What are the requirements for ceramics to be machined by ECM?

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TESTE DEIN WISSEN

Generally not possible because there are no metallic bonds.

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TESTE DEIN WISSEN

In addition to Wire EDM, another variant of EDM was presented in the lecture. Name the processing variant.

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TESTE DEIN WISSEN

Sinking EDM (SEDM)


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TESTE DEIN WISSEN

Name a different ECM process variant in order to achieve a more precise machining result and state how this variant affects the machining duration.

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TESTE DEIN WISSEN

Pulsed Precise ECM and it affect the duration of time due to the pauses between each pulse.

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Q:

How is the working fluid called, that electrically insulates the electrodes?

A:

Dielectric fluid

Q:

Define cutting wedge and name three functions of it.

A:

Cutting wegde can be found on every tool used for machining with geometrically defined cutting edges.


Its main functions are:

Chip formation

Surface formation

Separation/Cutting of material

Q:

In addition to the kinematic process parameters (cutting speed vc, workpiece speed vw, depth of cut ae, etc.), name three possibilities to influence the process results during grinding.

A:

Coolant

Grinding wheel specifications


Q:

Name the three categories presented in which component characteristics can be classified in order to describe form deviations. Also name a component characteristic for each category.

A:

Macrogeometry - size, shape, position

Microgeometry - surface quality

Near surface zone - hardness

Q:

Name the two most essential parameters in laser material processing.

A:

Exposure time and intensity

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Q:

Name the four wear mechanisms that can occur on forming tools.

A:

Abrasion

Adhesion

Surface fatigue

Tribochemical wear

Q:

What is the technical term for the working fluid?

A:

Electrolyte

Q:

How severe is the tool wear during ECM?

A:

Almost zero

Q:

Name two advantages and two disadvantages of electrochemical machining.

A:

Advantages:

Almost zero wear of tool

High productivity in serial production

Complex geometry machining possible


Disadvantages:

Costly

Complex process set up

High energy consumption

Q:

What are the requirements for ceramics to be machined by ECM?

A:

Generally not possible because there are no metallic bonds.

Q:

In addition to Wire EDM, another variant of EDM was presented in the lecture. Name the processing variant.

A:

Sinking EDM (SEDM)


Q:

Name a different ECM process variant in order to achieve a more precise machining result and state how this variant affects the machining duration.

A:

Pulsed Precise ECM and it affect the duration of time due to the pauses between each pulse.

Manufacturing Technology I

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