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Design: selecting materials for eco-design 25 May 2013 | 09:01 pm
For selection of materials in environmentally responsible design we must first ask: which phase of the life cycle of the product under consideration makes the largest impact on the environment? The an...
Strength and toughness 26 Apr 2013 | 07:18 pm
Strength and toughness? Why both? What’s the difference? Strength, when speaking of a material, is its resistance to plastic flow. Think of a sample loaded in tension. Increase the stress until disloc...
Technology Push and Market Pull 1 Apr 2013 | 09:14 pm
Many radical product innovations seem to be based on new technology. For example, pocket calculators, personal computers and many other new electronics-based products were made possible by the develop...
Developments in steel structures 16 Mar 2013 | 06:02 am
Early steel structures in bridges, industrial buildings, sports stadia and exhibition buildings were fully exposed. At the time no special consideration had been given to aesthetics. The form of a str...
Product Innovation 9 Mar 2013 | 01:19 pm
Most companies have a continuous programme of product development, within which they seek to maintain and increase their product sales by continually introducing improved and updated versions of their...
Blow Mold Parts & Functions 5 Mar 2013 | 07:34 pm
A Blow Mold is a hollow form or cavity into which a molten plastics material is introduced to give the shape of the required component. • The blow molding product shape and complex design are formed ...
International Organization for Standardization (ISO) 24 Feb 2013 | 05:19 pm
What ISO offers ISO is made up of national standards institutes from countries large and small, industrialized and developing, in all regions of the world. ISO develops voluntary technical standards, ...
The implications of tolerances for design 28 Jan 2013 | 07:49 pm
The above explains the need for tolerances since nothing can be made perfectly. The following examples show how tolerances and clearances can be used together to make sure parts assemble. Figure 4.16 ...
SCALES 19 Jan 2013 | 09:22 pm
Scale is the ratio of the linear dimension of an element of an object as represented in the drawing, to the real linear dimension of the same element of the object itself. Wherever possible, it is des...
Welding and Bonding 10 Jan 2013 | 09:12 pm
Most welding processes require the application of heat or pressure, or both, to produce a bond between the parts being joined. The welding control system must include means for controlling the applie...
