Job planning Flashcards
Job planning
The steps taken to take a drawing from a concept on paper to a reality
Engineering drawings
The language of draft persons, tool designers and engineers to indicate the physical requirements of a part to a machinist
Engineering drawings standards
American ANSI Y14.5 and ISO R1 101
Engineering drawings types
Orthographic view or projection method
Tolerance
Permissible variation of size of the part
Allowance
Intentional difference in sizes of mating parts
Fit
Range of tightness between two mating parts
Clearance fits
Part revolve or more
Interference fits
Two parts forced together as single
What is the limitation of engineering drawings
They do not specify how a part is to be made
What basic dimensioning should be done to properly describe the shape and sizes of the part required
The dimensioning of tolerances should be done to define the accuracy of the the specific operation or part
Workplace communication
Deals with part manufacturing in the international community. There is a standard method of communication for ease of process.
What organizations are responsible for constructing engineering standards?
International Standards Organization and American Society of Mechanical Engineers (ASME)
Bore
The inner diameter of the cylinder
Live center
Used to hold or support a workpiece in machine tools. They revolve with the work
