ME 383 Exam 1 ch 1
Elastomer polymer examples
o-rings Tires Rubberbands
Individual components are put together in a way designed for them to stay together as a unit Examples are welding and riveting
permanent joining
Types of assembly operations
permanent joining and mechanical assembly
Manufacturing processes can be broadly categorized into _____________________________
processing operations and assembly operations
Examples of composites
reinforced concrete Fiberglass
work in the SECONDARY sector _______________________________________________
revolves around processing raw materials to produce products.
the TERTIARY sector involves ____________________________
services, as opposed to products
Operations which form or change the shape of raw material
shape forming
Processing operations involve........
shape forming and treating
Activities in the PRIMARY sector of the nations economy involve ____________________________________________
the extraction of raw materials
Enhancing the properties of components
treating
treatments to the outer surface or adding coatings to it Examples are chrome plating, anodizing, powder coating
Surface processing
Examples of non-ferrous metals
Aluminum Copper Tin Zinc Silver Lead
Polymers are categorized into three major groups
Thermoplastic (can be remolded) Thermosetting (permanently set) Elastomers (flexible)
Examples of ferrous metals
Cast iron Low-carbon steel High carbon steel Tool steel Stainless steel
examples of crystalline ceramics
Clay pottery Casserole dishes Electric insulators
metals can be categorized into two groups:
Ferrous (iron-based) non-ferrous (containing no iron
Examples of amorphous ceramics
Glass bottles Window panes
Melting material and pouring it into the shape mold
casting
Types of shapeforming
casting Sintering Deformation Material removal Material addition
BB comer housed a ____________________________
coal-fired steam plant
________________ are compound materials combined in a way that makes the composite have properties superior to those of its individual components
composites
Manufacturing is divided into two main groups:
consumer goods and capital goods
Ceramics are categorized into two major groups:
crystalline (structured molecularly) Amorphous (no molecular structure)
compressing, bending or stretching
deformation
Thermosetting polymers examples
epoxy adhesive Shoe soles Flooring
The secondary sector is the sector that has _________________________
Manufacturing
________________________ covers perhaps the widest range of manufacturing operations
Metals processing
Thermoplastic polymer examples
PVC pipes Tool handles LEGO blocks
Using heat and pressure to form solid parts out of powdered materials
Sintering
Controlled heating and cooling processes, to change properties on the surface or throughout the entire part Examples are hardening and annealing
heat treating
Types of treating
heat treating and surface processes
the adoption of parts _______________________________ significantly streamlined the production of products in a higher quantities
interchangeability
Additive manufacturing processes such as 3D printing
material addition
Cutting , grinding etc.
material removal
Individual components are put together in a way designed for ease of disassembly later Examples are bolting together and mechanical interlocking
mechanical assembly
Primary sector examples:
-Mining -Forestry -agriculture -livestock -fisheries -oil and gas extraction
Secondary sector examples
-automotive production -construction -chemicals -textiles -food processing -furniture -electronics -machinery -appliances
Tertiary sector
-banking -education -entertainment -information processing -hospitality -transportation -legal services
