At left a sheet assembly with an “L” shaped stiffener spot welded in four places. the 2 hex shaped standoffs are standard pipe caps used for alignment to a main plate.
engineering
Description
Design for
Machining/Manufacturing Analysis
At left a sheet assembly with an
“L” shaped stiffener spot welded in four places. the 2 hex shaped standoffs are
standard pipe caps used for alignment to a main plate. Two plug welds are wont
to secure each standoff to the most plate, so there are four plug welds in
total for the standoffs alone. the choice to the present “prototype” approach
is on the right: a finished cast example with integrated features.
Design for manufacturing (DFM) is design based on minimizing the cost of production and/or time to market for a product, while maintaining an appropriate level of quality. The strategy in DFM involves minimizing the number of parts in a product and selecting the appropriate manufacturing process.
Design for Manufacturing Aims to:
1.Reduce material, overhead and labor cost
2.Shorten the product development cycle
3.Focus on standards to reduce cost
Design Faults:
1. This individual component
would be a high cost because of welding spots
2. This sheet could also be
have lots of failure welding spots and its finish could also be not prosperous
3. The welding spots would be weak points in this metal sheet
Suggestions for Improvements:
1.
The metal sheet are going to be casted for a higher
improved design.
Minimize part count by incorporating multiple
functions into single parts. Several parts could be fabricated by using
different manufacturing processes (sheet metal forming, injection molding). Ask
yourself if a part function can be performed by a neighboring part.
Costs can be reduced by the following design recommendations:
–Welded assemblies should be made up of as few parts
as possible
–Bending and forming operations are almost always less
costly than welding
