definitions and processes

Question 1

why would a project be made in sections

Answer 1

transportation
parts can be made in different places
easier quality checks
easier to maintain and repair
manufacturers can minimize waste as the exact materials are used

Question 2

disadvantages of batch production

Answer 2

finished batches often require storage
when in storage demand can fluctuate causing a lose
materials can be purchased in batches which can cause a waste in materials

Question 3

why certain finishes are harmful when recycled

Answer 3

paint contains volatile organic compounds when mixed with other chemicals can pose health and environmental risks

lamination the plastic is difficult to recycle not available in standard recycling facilities

Question 4

whats used to mark metal

Answer 4

graver

Question 5

what materials would you use to make a file in a school workshop

Answer 5

cardboard
polypropylene

Question 6

safety precaution when cutting stuff

Answer 6

craft mat

Question 7

vacuum forming

Answer 7

low setup costs
molds can be made from inexpensive materials like plastic and wood
suitable for creating large lightweight parts

limited detail
material limitations
process can cause defects like warping in deeper molds

Question 8

injection molding

Answer 8

Ideal for mass production, with quick cycle times and high output rates.
Suitable for highly detailed complex parts
Can use a wide range of thermoplastics, thermosets, and even elastomers.

Mold design and production are expensive, making it impractical for small runs.
The initial setup process, including mold creation, can be time-consuming.
Defective parts or excess material (sprues) can generate waste, although these can often be recycled.

Question 9

die casting

Answer 9

Produces strong, precise, and dimensionally stable metal parts with smooth finishes.
Parts are robust, making die casting ideal for durable applications in automotive and aerospace.

Not applicable for small batch production
Expensive tooling and setup costs are not suitable for small production runs.
Limited to Metals with Low Melting Points: Mostly used with zinc, aluminum, and magnesium alloys.
Changes to molds are costly and time-consuming, limiting design flexibility.

Question 10

welding

Answer 10

Welded joints are typically very strong, especially when used with metals.
Welding allows joining different materials and complex shapes.
Versatility: Used in a wide range of industries, from construction to automotive, with various welding techniques available.

Often requires skilled workers, making labor costs higher.
Produces fumes and requires protective equipment, especially in arc and gas welding.
High heat can cause warping, which may need additional correction steps.