Engineering Exam

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  • Created by: JoeLewis
  • Created on: 05-04-15 15:36
What is Milling?
Milling is a process used to shape products by removing excess material to produce a range of simple and complex shapes.A milling machine has a spindle that holds a rotating cutter in place.
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What is Drilling?
Drilling is a process that creates circular holes in a workpiece. The cutting device is called a drill bit. To drill a satisfactory holes in any material the correct type of drill bit must be used.
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How can accidents be caused using machining processes?
Loose Clothing Snagging on a revolving part, Flying pieces of metal entering the eye, The hand or arm coming into contact with revolving surfaces/parts and Minor burns from hot material surfaces.
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What is casting?
Casting is a process that usally involves pouring or injecting a liquid metal into a mould. The mould contains a cavity that takes the shape of the desired object where the metal is allowed to cool and solidify. The casting is then removed.
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What is Forging?
Forging is a process that involves a metal being heated up and shaped by plastic deformation. It is usually achieved by applying some kind of squeezing force (compression) such as hammer blows using a large power press.
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What is the welding process of MIG?
MIG stands for Metal Inert Gas. MIG is probably the most common industrial welding process. It uses electricity to generate the heat required to weld materials.
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What is the welding process of Oxy-Acetylene?
Oxy- Acetylene is a gas welding process where a flame is produced using a mixture of oxygen and acetylene. No pressure on the product is required- the heat is there to control the welding of the parts.
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What is the process of Spot Welding?
Spot Welding is a type of electrical resistance welding generally used to join sheet material together. The basic principle uses a transformer with a primary winding and a secondary winding connected to copper electrodes.
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What is Shearing?
Shearing is a process used to cut straight lines of a range of materials. An upper blade and lower blade are forced past each other with a space between them determined by a required offset. Usually, one of the blades is stationary.
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What is the process of Printed Circuit Board (PCB) manafacture?
1) Designing the layout,Usually they are designed using computer software. 2) Producing the artwork,this can be converted from the computer program. 3) PCB Etching, The track and component layout is the converted to the copper covered board.4) Drill
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What is Surface Mount Technology?
High Volume industrial PCB manufacture is achieved through Surface Mount Technology. The process involves attaching electrical components to the surface of a conductive board rather than drilling holes for component legs.
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What is the process of Surface Mount Technology (SMT)?
1)Apply solder pads to copper pads 2)Place the components using pick and place robot. 3)Convayer belts are used to transport boards to soldering oven 4) The board is heated to a temperature that melts the solder plastic 5)Components are soldered
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What is One Off Production?
One Off Production is used when a customer requires a product specially for them or when a prototype needs to be made. There may be one person or a number of people working on the product. The method of production usually results in high unit costs.
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What is Batch Production?
Batch production is used when a customer requires a certain quantity of identical products they are usually produced using Batch Production.
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What is Mass Production?
Mass production is used to produce products in very large quantities. It usually involves dedicated machines and assembly lines that will repeat the manufacture.
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What is Continuous Production?
Continous production involves continous production of products over a period of time. This method usually means
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Batch - Facts and Figures.
Unit cost - Medium, Tools and Equipment - Specialised, Initial Investment - Medium, Product Efficiency - Medium/High, Labour Type - Skilled/Semi-Skilled, Labour Costs - Medium.
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One Off - Facts and Figures.
Unit Cost - High, Tools and Equipment - General, Initial Investment - Low, Labour Type - Skilled, Labour Costs - High.
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Mass Production- Facts and Figures.
Unit Cost - Low, Tools and Equipment - Specialist and Dedicated, Initial Investment - High, Production Efficiency - High, Labour Type - Semi Skilled/ Unskilled, Labour Costs - Low.
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Continous Production - Facts and Figures.
Unit Cost - Low, Tools and Equipment - Specialist and Dedicated, Initial Investment - High, Production Efficiency - Very High, Labour Type - Unskilled, Labour Costs - Low.
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What is Computer Numerically Controlled (CNC) Machinery?
A CNC machine uses programming information to automatically execute a series of machining operations. For example a CNC milling machine has the same basic functions as a traditional milling machine but it has a computer that controls the spindle.
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What are the properties of Glass Reinforced Plastic?
Glass Reinforced Plastic has a good strength to weight ratio, easily moulded/Shaped, resistant to corrosion
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What are the properties of Carbon Fibre?
Carbon Fibre has an amazing strength to weight ratio, easily moulded/shaped, its is resistant to corrosion, rigid/stiff, electrical insulator but quite expensive.
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What are the properties of Kevlar?
Kevlar has High tensile strength to low weight ratio, high chemical resistance, extremely tough, very stable and is non - flamable
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What are the properties of Titanium?
Titanium has low density, high strength, is resistant to corrosion, and has low thermal conductivity.
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What are the properties of Ceramics?
Ceramics are very hard but brittle, good wear resistance, corrosion resistant, very stable and chemically inert.
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What are the properties of Super Alloys?
Super Alloys have excellent strength at high temperatures, very expensive, resistant to corrosion and is hard wearing.
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What are the properties of Shape Memory Alloys?
Shape memory alloys, return to their original shape after heating, and deformation, are lightweight and are quite expensive.
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What are the properties of Shape Memory Polymers?
Shape Memory Polymers, return to their original shape after heating and deformation, lightweight and are resistant to corrosion.
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What are the properties of Piezoelectric actuators?
Piezo electric actuators have an ability to generate electric charge when squeezed or pressed.
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What are Metallic Foams?
A metallic foam is made usually of aluminium. A typical metallic foam will have between 75 and 95 per cent of its structure made of pores or spaces that can be connected together or sealed which traps gases inside the metal. Metallic foams are rigid.
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What is Powder Metallurgy?
This is a highly evolved method of producing consistently shaped components by blending elements or pre-alloyed powders together. The powders are then compacted in a die and heated in a controlled furnace atmosphere to bond particles.
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What are Optical Fibres?
Optical Fiberes are used mainly in telephone networks as an alternative to copper wire, It has the ability to transmit data at higher speeds and the ability to do this with lower rates of transmission errors.
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What are Hydrogen Fuel Cells?
Hydrogen Fuel Cells versatile energy carrier which can be used to power most devices, They directly convert chemical energy in the hydrogen to electricity with pure water, they operate very quietly and are very efficient , fewer moving parts.
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What are Surface Nanotechnologies?
Surface Nanotechnologies are chemical systems that provide coatings to a range of surfaces. Some Examples are: Ceramics, Metals, Glass, Plastics.
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What is Telematics?
Telematics is a combination of telecommunications and information communications technology. This technology has improved the efficiency of many organisations but has had most impact when used in vehicles.
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What are Blended Wing Bodies?
Blended Wing Bodies are a hybrid design for use on aeroplane wings and other things in the aerospace industry.
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What are Bionics?
Bionics are used to solve/ help with medical problems. An example is the development of artificial pacemakers to correct abnormal heart rhythms.
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What is the Life Cycle Assessment?
The Life Cycle Assessment is the process used to look at the entire life cycle of a product or process.
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What are the stages of the Life Cycle Assessment?
The Stages are: Raw material extraction, material production, production of parts, assembly of products, the product use and the product disposal/recycling
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What the 'Four Rs'?
The Four R's are: Reduce, Reuse, Recycle, and Recover
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What is Just-In-Time Manufacturing?
Just-In-Time Manufacturing involves a strategic approach to the development and operation of a manufacturing system. This means that the production process is organised in a way that ensures parts are available when they are needed.
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What is Kaizen?
Kaizen is a manufacturing policy of constantly introducing small changes (For Example: A Production Line) line to improve quality and efficiency. This technique puts the workers at the heart of the decision making.
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What is Poka-Yoke?
Poka-Yoke is a technique used for avoiding simplistic human error in the workplace. The ideas is to take over all the repetitive processes/tasks performed by humans that rely on memory or vigilance and replace them with a simple system.
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What is Wind Energy?
Wind is a natural and clean source of renewable energy that produces no air or water pollution. Most wind energy is harnessed through the use of wind turbines. These are usually quite tall structures.
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What is Solar Energy?
Most solar energy is produced through a series of panels that contain photovoltaic cells. These cells convert the heat produced from the rays of the sun into electricity. Over recent years there has been an increase in Solar Energy.
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What is Hydro Energy?
Hydroelectricity is the use of running water to generate water.
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What is Geothermal Energy?
Geothermal energy is a system that uses the heat from socks in the earth inner core that turns water into steam.
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Other cards in this set

Card 2

Front

What is Drilling?

Back

Drilling is a process that creates circular holes in a workpiece. The cutting device is called a drill bit. To drill a satisfactory holes in any material the correct type of drill bit must be used.

Card 3

Front

How can accidents be caused using machining processes?

Back

Preview of the front of card 3

Card 4

Front

What is casting?

Back

Preview of the front of card 4

Card 5

Front

What is Forging?

Back

Preview of the front of card 5
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