Revision chp 1 - 5 manufacturing processe 2024

definition of manufacturing process

• Process of converting raw materials into products

  It includes the design of the product, the selection of raw materials, and  the sequence of processes through which the product will be manufactured.

• Process of transform anything

  It includes the design of the product, the selection of raw materials, and  the sequence of processes through which the product will be manufactured.

• Process of converting raw materials into products

  It includes the types of the product, and raw materials, and  the sequence of processes through which the product will be manufactured.

• Process of converting final product into machining

  It includes the design of the product, the selection of raw materials, and  the sequence of processes through which the product will be manufactured.

What is related to Fixed position layout

• produced 1-100 units/year

• Highly labour skill

• produced 10k - 100k units/year

• Low labour skill

What is related to Product Layout

• produced 1-100 units/year

• Highly labour skill

• produced 10k - 100k units/year

• Low labour skill

What is principle of metal casting

• pour it into the mold,

  melt the metal,

  let it freeze and

  remove the metal from the mold

• melt the metal,

  pour it into the mold,

  let it freeze and

   remove the metal from the mold

• let it freeze and

  pour it into the mold,

  melt the metal,

  remove the metal from the mold

• let it freeze and

  pour it into the mold,

  melt the metal,

  remove the metal from the mold

What is related with Hot Chamber

• Internal melting operation

• Pressure 7 -37Mpa

• High Cycle rate

• Slow Cycle rate

• External melting operation

What is related with Cold Chamber

• Internal melting operation

• Pressure 14 -140Mpa

• High Cycle rate

• Slow Cycle rate

• External melting operation

Which is related with Geometric simplicity

• Sand casting must be machined to some extent in order for the part to be made functional 

• Sharp corners and angles cause hot tearing and cracks.

  Fillets on inside corners. 

• Simplifying part design will improve its castability.

  Avoid unnecessary complexities, reduces the need for cores, and improves the strength

Which is related with Corners

• Sand casting must be machined to some extent in order for the part to be made functional 

• Sharp corners and angles cause hot tearing and cracks.

  Fillets on inside corners. 

• Simplifying part design will improve its castability.

  Avoid unnecessary complexities, reduces the need for cores, and improves the strength

Which is related with Machining allowances

• Sand casting must be machined to some extent in order for the part to be made functional 

• Sharp corners and angles cause hot tearing and cracks.

  Fillets on inside corners. 

• Simplifying part design will improve its castability.

  Avoid unnecessary complexities, reduces the need for cores, and improves the strength

What is element of manufacturing

• Input

• Transformation process

• Output

• Machining process

• Internal