4.6.2
Modification of Metals
Modification of Metals
Modification of Metals
There are several common methods used to modify and shape metals.
Hammering or forging
Hammering or forging
- Hammering or forging involves using a hammer or a forging press to deform the metal.
- The metal is deformed by applying repeated blows or pressure.
- Hammering or forging is used to shape metals into desired forms.
- Flat sheets and three-dimensional objects are desired forms.
Cutting
Cutting
- Various methods can be used to cut metals.
- For example, sawing and shearing.
- Cutting methods allow you to remove excess material.
- Cutting methods allow you to divide the metal into specific shapes.
Rolling and bending
Rolling and bending
- Rolling is a process where a metal is passed through a set of rollers.
- Rolling reduces the metal's thickness and alters its shape.
- Rolling is used to produce metal sheets, plates, and foils.
- Bending involves applying force to a metal object.
- Bending uses specialised tools like a bending machine or a vice.
- Simple bends can be made by using pliers or a bending brake.
Casting
Casting
- Casting involves melting a metal and pouring it into a mould.
- When the metal solidifies, it takes the shape of the mould.
- Casting is used to create complex shapes.
- Casting is used to create objects that are difficult to achieve through other means.
Welding and machining
Welding and machining
- Welding joins metal pieces together by melting and fusing them.
- Welding uses heat and often an additional filler metal to create a strong bond.
- Machining uses cutting tools to remove material from a metal workpiece and shape it into the desired form.
- Cutting tools include lathes, milling machines, and drills.
Extrusion
Extrusion
- Extrusion forces a metal through a shaped opening called a die.
- Extrusion produces a metal with a continuous profile and specific cross-section.
- Extrusion is used to create objects with a consistent shape.
- For example, rods, tubes, and profiles.
1Core Technical Principles
1.1New & Emerging Technologies
1.2Energy Generation & Storage
1.3Developments in New Materials
1.4Systems Approach to Designing
1.5Mechanical Devices
1.6Materials Categories
2Paper & Board: Specialist Technical Principles
2.1Selection of Materials
2.2Paper & Board: Forces & Stresses
2.3Paper & Board: Ecological & Social Footprint
2.4Paper & Board: Sources & Origins
2.5Paper & Board: Using Materials
2.6Paper & Board: Stock Forms, Types & Sizes
2.7Paper & Board: Scales of Production
2.8Paper & Board: Specialist Techniques & Processes
2.9Paper & Board: Surface Treatments & Finishes
3Timber: Specialist Technical Principles
3.1Timber: Selection of Materials
3.2Timber: Forces & Stresses
3.3Timber: Ecological & Social Footprint
3.4Timber: Sources & Origins
3.5Timber: Using Materials
3.6Timber: Stock Forms, Types & Sizes
3.7Timber: Scales of Production
3.8Timber: Specialist Techniques & Processes
3.9Timber: Surface Treatments & Finishes
4Metal: Specialist Technical Principles
4.1Metals: Selection of Materials
4.2Metals: Forces & Stresses
4.3Metals: Ecological & Social Footprint
4.4Metals: Sources & Origins
4.5Metals: Alloy-Based Materials
4.6Metals: Using Materials
4.7Metals: Scales of Production
4.8Metals: Specialist Techniques & Processes
4.9Metals: Quality Control
4.10Metals: Surface Treatments & Finishes
5Polymers: Specialist Technical Principles
5.1Polymers
5.2Polymer Categories
5.3Polymer Forms
5.4Polymer Production, Techniques & Quality Control
6Textiles: Specialist Technical Principles
6.1Textile Materials
6.2Selection of Materials
6.3Forces & Stresses
7Designing & Making Principles
7.1Investigation & Data
7.2Environmental, Social & Economic Challenges
7.3The Work of Others
7.4Design Strategies
7.5Communication of Design Ideas
7.6Prototype Development
7.7Selection of Materials
7.8Tolerances
7.9Material Management
7.10Specialist Equipment
7.11Specialist Techniques & Processes
Jump to other topics
1Core Technical Principles
1.1New & Emerging Technologies
1.2Energy Generation & Storage
1.3Developments in New Materials
1.4Systems Approach to Designing
1.5Mechanical Devices
1.6Materials Categories
2Paper & Board: Specialist Technical Principles
2.1Selection of Materials
2.2Paper & Board: Forces & Stresses
2.3Paper & Board: Ecological & Social Footprint
2.4Paper & Board: Sources & Origins
2.5Paper & Board: Using Materials
2.6Paper & Board: Stock Forms, Types & Sizes
2.7Paper & Board: Scales of Production
2.8Paper & Board: Specialist Techniques & Processes
2.9Paper & Board: Surface Treatments & Finishes
3Timber: Specialist Technical Principles
3.1Timber: Selection of Materials
3.2Timber: Forces & Stresses
3.3Timber: Ecological & Social Footprint
3.4Timber: Sources & Origins
3.5Timber: Using Materials
3.6Timber: Stock Forms, Types & Sizes
3.7Timber: Scales of Production
3.8Timber: Specialist Techniques & Processes
3.9Timber: Surface Treatments & Finishes
4Metal: Specialist Technical Principles
4.1Metals: Selection of Materials
4.2Metals: Forces & Stresses
4.3Metals: Ecological & Social Footprint
4.4Metals: Sources & Origins
4.5Metals: Alloy-Based Materials
4.6Metals: Using Materials
4.7Metals: Scales of Production
4.8Metals: Specialist Techniques & Processes
4.9Metals: Quality Control
4.10Metals: Surface Treatments & Finishes
5Polymers: Specialist Technical Principles
5.1Polymers
5.2Polymer Categories
5.3Polymer Forms
5.4Polymer Production, Techniques & Quality Control
6Textiles: Specialist Technical Principles
6.1Textile Materials
6.2Selection of Materials
6.3Forces & Stresses
7Designing & Making Principles
7.1Investigation & Data
7.2Environmental, Social & Economic Challenges
7.3The Work of Others
7.4Design Strategies
7.5Communication of Design Ideas
7.6Prototype Development
7.7Selection of Materials
7.8Tolerances
7.9Material Management
7.10Specialist Equipment
7.11Specialist Techniques & Processes
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