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23 Cards in this Set
- Front
- Back
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Scribing |
Scoring a line onto a surface (usually before cutting or folding) |
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Softwood |
Softwood comes from trees with needle likeleaves (mainly evergreen trees). It’s usually less dense and easier to saw than hardwood. |
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Soldering |
Joining two metals together by melting a tin based alloy between them. Not as strong as brazing or welding. Generally used to attach a component to a printed circuit board by melting solder to make a permanent join. |
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Spelter |
An alloy of zinc. |
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Sustainable |
A sustainable process or material is one that can be used without causing permanent damage to the environment or using upfinite resources . eg. Sustainable wood comes from forests where fast growing trees are chopped down and replaced. |
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Social issues |
We are all part of one group of people and each of us in some small way relies on others. Making sure that the products we make do not have a negative impact on others is an important consideration. |
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Seasoned |
All natural wood is seasoned to remove moisture.The process of seasoning involves drying in a controlled way to prevent twisting and warping. |
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Scale |
The ratio of the size of the design in the drawing to the size of the finished item. |
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Synthetic |
Man made – a manufactured material |
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SMA - Shape memory alloy |
A metal, that, after being bent out of shape,will return to its original shape when heated above its transition temperature. |
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Tacky |
Slightly sticky |
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Tapered |
Something that gets narrower at one end |
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Tarnishing |
When a metal surface loses its shine and becomesdull. Tarnishing happens because of reactions with the air. |
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Thermoplastics |
Plastics that can be melted and remoulded over and over again. |
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Thermosetting |
Thermosetting plastics are ones that undergo a chemical change when heated which makes them hard and rigid. They can’t be remoulded. |
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Tolerance |
How much a component can differ in size from its ideal measurements before the product is affected. |
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Technology push |
Technology push - How advancements in technology are used to produce new products. |
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Tolerance |
Accepted range of difference from standard. |
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Toxic |
A toxic substance is one that is harmful to health |
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Veneer |
Veneer - A thin layer of high quality wood. |
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Vacuum forming |
Forming a thermoplastic sheet over a mould, using heat and a vacuum. |
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Warped |
When something has changed shape, eg. Untreated wood warps after time. |
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Working drawing |
A detailed scale drawing that shows all the components of each part of a product, the materials from which components are to be made. Etc. |
