Revision test 1

Give a definition of manufacturing.

• Application of physical and chemical processes to alter the geometry, properties, and / or appearance of a given starting material to make parts or products.

• Process of converting raw materials into products including the design of the product, selection of raw materials and the sequence of processes through which the product will be manufactured

• Manufacturing is the transformation of materials into items of greater value by means of one or more processing and / or assembly operations.

• Manufacturing is a sequence of processes that add value to the material by changing its shape or properties, or by combining it with other materials that have been similarly altered.

Identify the elements of manufacturing.

• I - Input

  II - Final product

  III - Output

• I - Input

  III - Output

  IV - Transformation Process

• II - Final product

  III - Output

  IV - Transformation Process

• I - Input

  II - Final product

  IV - Transformation Process

X is the operations alter the geometry of the starting work material by various methods which most operations apply heat or mechanical force or a combination of these to effect a change in geometry of the work material. What is X

• Shaping operations

• Solidification processes

• Deformation processes

• Material Removal Processes

This layout implemented for large and heavy product. It will remain in a single location during its fabrication or assembly. It is offers higher flexibility in changes. Workers and equipment are brought to the location during production.

Identify the layout mentioned in above statement.

• Product layout

• Process layout

• Fixed position layout

• Cellular layout

Discover the reasons for standardization in manufacturing.

• I - Cut down manufacturing cost.

  II - Facilitate the exchange of parts.

  III - Ease for handling the manufacturing operations

• I - Cut down manufacturing cost.

  II - Facilitate the exchange of parts.

  IV - Lower the storing expenses by limiting the types.

• I - Cut down manufacturing cost.

  III - Ease for handling the manufacturing operations

  IV - Lower the storing expenses by limiting the types.

• II - Facilitate the exchange of parts.

  III - Ease for handling the manufacturing operations

  IV - Lower the storing expenses by limiting the types.

The following reasons make casting processes are still competitive among others manufacturing methods:

• I – Complex shape with internal cavities or hollow sections.

  III – Higher production rates

  IV – Improve properties of materials

• I – Complex shape with internal cavities or hollow sections.

  II – The cast components may not require further finishing operation, thus reducing overall production time

  IV – Improve properties of materials

• I – Complex shape with internal cavities or hollow sections.

  II – The cast components may not require further finishing operation, thus reducing overall production time

  III – Higher production rates

• I – Complex shape with internal cavities or hollow sections.

  II – The cast components may not require further finishing operation, thus reducing overall production time

  III – Higher production rates

  IV – Improve properties of materials

Rearrange the working principle of metal casting below.

• Pour into the mold

  Let is solidify

  Remove from the mold

  Melt the metal

• Pour into the mold

  Remove from the mold

  Melt the metal

  Let it solidify

• Let is solidify

  Remove from the mold

  Melt the metal

  Pour into the mold

• Melt the metal

  Pour into the mold

  Let is solidify

  Remove from the mold

These parts which are inserts made from sand. They are placed in the mold to form hollow regions, internal cavities, or passages. They are also used on the outside of the casting to form features such as lettering on the surface of a casting or deep external pockets.

The statements above best describe about Y

• Gating systems

• Mold Cavities

• Cores

• Risers

Z is a permanent mold casting process whereby molten metal are injected into the mold under high pressure from the range of 7 to 350 MPa. During solidification process, the pressurized either pneumatically or hydraulically is maintained. This method produces superior castings than sand casting.

• Investment casting

• Centrifugal casting

• Die casting

• Shell mold casting

Determine the design consideration in metal casting.

• Geometric simplicity

  Corners

  Machining allowances

• Geometric simplicity

  Corners

  Edging

• Geometric simplicity

  Edging

  Machining allowances

• Edging

  Corners

  Machining allowances