What is the difference between assembly drawing and detail drawing?

Answer 1

Shop drawings usually refer to drawings made by an engineer and distributed to the shop floor to be used by the fabricators. An as built drawing can mean one of three things. A) As built commonly refers to an item that will have a mirror or opposite part, and is usually labeled as Right or Left Hand, or Opposite Side. In this case AS DRAWN or AS BUILT means the fabricator is to make the part just like the drawing. Often these drawings are enlargements of sections of another drawing. B) The drawing is made during the building process. This would occur during custom building or prototype stage of manufacture. These drawings would then be sent to the engineer for finalization, assuming they work. C) The drawing is made from an existing sample part or product, sometimes by the engineer and sometimes by the people on the shop floor.

Answer 2

Assembly drawing is a sketch of a machine. A simple diagram of machine is known as assembly drawing. Part of a machine, which are used in machine must be considered in detail drawing.

It's not just a sketch of a machine, but of all the parts of a machine and how they are to be assembled to make that machine. A detail can be of any part, or any number of parts, of the machine, partially assembled or not, that gives a greater detail of how it works, is put together, or of dimensions, etc.

For instance, say you have an assembly drawing of an entire automobile and a part of that assembly is the dashboard. You may then have a detail of everything that is on/in the dashboard. (to make it more confusing, you could also have an assembly drawing of just the dashboard, with different detail drawings of the parts of the dashboard.)