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▷ ▶ Short Straight Screwdirver SelectSmart.com free Machinery & Tools flowcharts and decision trees.
Short Straight Screwdirver
A SelectSmart.com Flowchart by cognia739. See cognia739's 4me blog page.
Viewed 609 times. Created September 2013.

Information and items from Amazon.com you may find helpful. This SelectSmart.com Machinery & Tools flowchart, a free online decision tool is a creation of cognia739 and Machinery & Tools for amusement purposes only. The implicit and explicit opinions expressed here are the author's. SelectSmart.com does not necessarily agree.
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Show manufacturing process

                 
Obtain materials for screwdriver
Steel Bar: Stainless Steel 410 Green wire Diameter 0.4in
Machined to Diameter: 0.38 in
Check for correct size
NO
Scrap if to small Diameter < .379in







YES


NO
Handle: Cellulose acetate rosin and Liquid plasticizer
Scrap if too short Length < 5.49in or too narrow Width < 0.037in
NO
Check for length and width
Bars are annealed to achieve high tensile strength ≥ 1200 MPa
Re-size if too large Diameter >.381in



NO


YES




Materials mixed and red pigment added
Re-cut if too long Length > 5.51in or to wide Width > 0.043in
Bar is heat-treated for hardness and the blade tip is textured
YES
Bars are cold pressed to be straightened and form the blade tip. Bar is cut to Length: 5.5in Width of Blade Tip: 0.04in
Send back for re-test









Extruded into small pellets
Pellets are collected and put into another extruded and made into bars
Bar is nickel plated
Check for magnetization
NO
Re-magnetize bar






YES



Bars are cut into shape Length:3.5in Diameter:0.75
Check for sizes
YES
Hydraulic press is used to press Steel bar into handle
YES
Screwdriver is packaged and shipped for retail
Refine the and address the issues regarding the failure



NO




YES


NO
Hole is cut into handle for the steel bar Diameter:0.38in Depth: 2.50in
Scrap if too large Diameter< 0.381in or too deep Depth> 2.52in
NO
Re cut if too small Diameter< 0.379in or too shallow Depth< 2.49in
Quality Assessment
NO
Asses the problem Scrap if Irreparable