CAD CAM– Looking at quality

Which of the following is CAD and CAM ? Computer aided desk Computer and design Computer aided design Computer and drawing

Computer and manufacturing Computer aided manufacturing Computer aided mixing Computer and monitoring (2 marks)

STARTER

To know what CAD CAM is and how it is used in the food industry.

To understand the advantages and disadvantages of CAM in food production.

To understand batch, automated, continuous flow and job production.

To be able to answer exam style questions in preparation for the exam.

OBJECTIVES

Computer Aided Design

Designers of food products can prepare 2 or 3D models of new food products and send it across the office or world.

Changes to the products can be made on screen.

Packaging can be designed on screen

How CAD benefits the food industry

COMPUTER AIDED MANUFACTURE

The manufacture of products can involve the use of computers to control one or more aspect of production.

What CAM

Domino/s pizza dough balls

Regulate oven thermostats Oven temperature Weighing and measuring The speed /rate at which an ingredient is

added. The amount of mixture/or coating The timing of

mixing/Kneading/stirring/combining.

Examples of CAM

CAM can control the moisture content or PH of a product.

The speed of a conveyer belt. It might detect any colour change e.g over

or under cooked. Example of a thin sauce detecting light ,

sets off alarm. Detect the temp of fridges/freezers Metal detect and an alarm would stop the

line.

What is CAD and CAM give 5 ways of how it can be used in industry. (5)

Get your partner to check your work and tick 5.

Using the two slides write out a definition with 5 points.

1. Detects what the eye cannot see 2. Saves time. 3. Increases speed. 4. Standardises production. (Keeps it the

same) 5. Increases reliability – less mistakes than

by hand. 6. Increases safety of hazardous tasks. 7. Reduces labour costs.

ADVANTAGES OF CAM

Handles large amounts of data. Runs all day without a tea-break.

Some jobs lost as computers take over. A highly trained operator could run a large section.

It needs programming and computer maintanace.

WHAT DOES THIS MEAN?

The effects of CAM on the industry

Need trained staff to set up computer systems.

Very expensive to set up May reduce the work force causing job loss.

DISADVANTAGES

How manufacturers obtain consistent products: Industrial quality assurance Legal Requirements Quality Control sample CAD/CAM Due diligence

MIX AND MATCH – Look for clues.

Examples of industrial equpiment

Computerized scales Separation process in quorn making

A Centrifuge (Like a spin drier separating liquid from solid in making quorn)

To slice the top off cakes for flat icing.

A Mandolin ( Slices evenly ) A big container to cook soup.

A boiling vat Weighing accurately

Floor standing mixer For consistent mixing

Date stamping To make batches of bread.

A deck oven allows batches to be could at once

Container is filled, sealed and stamped in seconds

Computerized scales Weighing accurately

A Centrifuge (Like a spin drier separating liquid from solid in making quorn)

Separtion process in quorn making

A Mandolin ( Slices eventyl e.g cake tops for a flat surface for icing.

To slice the top off cakes for flat icing.

A boiling vat A big container to cook soup.

Floor standing mixer Floor standing mixer

Date stamping Container is filled, sealed and stamped in seconds

A deck oven allows batches to be could at once

To make batches of bread.

ANSWERS

Think about the advantages and disadvantages of CAM. Explain what these are and what are the effects of CAM.

Advantages (3) Disadvantages (3) Effect of CAM for the industry. (2)

Over to you

What do I know and understand?

I Know what CAD is with examples. I know what CAM can do with advantages

and disadvantages. I know the effects on industry.

I have understood examples of large scale equipment.

BRILLIANT!

Automated Production

This is mass production and we have talked loads about this just now. Production that doesn’t stop or need tea-breaks. The effects of this you have written about. CAM is used for this

Recap Safer for workers. More hygienic as less handling of food Assures final quality Accurate measuring/weighing/cutting/shaping/critical

control points are automatically tested and saves time.

Types of production you need to know.

Automated flow packaging and doughnuts

BATCH – production Bakeries on a small scale making a batch of

bread a few dozen buns and not 1000’s.

The equipment can be used for more than one product e.g mixers with dough hooks kneading bread, mixing cake batters.

You need skilled workers.

BATCH PRODUCTION

BATCH PRODUCTION

This is production that goes 24 hours per day 7 days a week. Baked beans, cakes, crisps.

These are machines that have one function only.

They are sold in 1000’s and have a long shelf life.

Continuous flow

Continous flow production

This is just like me making a wedding cake. A small bakery might make a special order

cake.

The customer may have special requirements and needs to be very skilled.

One off production

ONE OFF PRODUCTION

Automated production (CAM) Batch Production Continuous flow production One off production

Give me an example of each? What are the advantages/disadvantages of

each?

What do I know

Method Advantages Disadvantages

Automated flow Can produce 1000’s products safely, hygienically and to a high quality standard.Computerized can record data and set off warning alarms.

Needs expensive programming and maintenance. Whole system may stop.Reduced work force

Batch Can make different variations of batches easily.Can use the same equipment for different items.

Need trained staff

Continuous flow Can produce 1000’s of product accurately, safety and hygienically.

Machinery has only one function. Jobs may be lost.

One off production Can achieve a high quality product.

Time consuming Expensive

Review. Tell your partner what you know about CAD

and CAM. What are the 4 methods of production. What industrial equipment can you remember?

Revision practise at home/extension Prepare an answer for the exam on CAD and CAM . Make sure you know the

advantages/disadvantages 4 methods of production.