Tony Louie

 

Manufacturing Plan for Wheel Barrow

Plans for Each Part

Bucket

The bucket will first be formed from sheet steel. Holes will be spot faced, center drilled and drilled on a universal milling machine.

Handles

The the wooden handles will be sawed and turned.

U base legs

The sheet metal legs will be bent to shape.

U base Bumper

The sheet metal bumper be bent to shape.

Holes

All holes will be spot faced and center drilled on a universal milling machine during the assembly process.

Presumed Process Capabilities

Process

Min Tolerances

Geometric Restrictions

Sheet Metal Pressing

         +/- .01 in. over 34 in. side to side

         +/-.01 in. over 38 in. end to end

Sawing

         +/- .001 in. over 57 in. for length of handles

         No sharp inside corners

         No small detail in narrow deep locations

Turning

         +/- .01 in. for diameter of handles

.

Flat Stock Bending

.

         +/-.05 mm on features

 

Drilling

         +/- .001 in. size, shape, alignment

         Holes only

         Holes will be center drilled in the assembly