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Metal Forming of a 10B21 Steel Locking Lever for the Office Furniture Industry

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Metal Forming of a Steel Locking Levers

A client in the office furniture industry approached Acme Screw Corporation in need of metal forming of a 10B21 steel locking lever. The part was to be used as an adjustment for a chair in a high-end office environment. We straightened and cut the steel from a coil, to 9-1/2" long. Then we rolled a groove on one end. We bent and flattened the part to the required shape while forming nibs. We then trimmed it to the specified dimensions. The opposite end was extruded according to our client's size and shape requirements, then we shaved the point and swedged the ears in a press. Finally we performed heat treatment and zinc plating with black zinc phosphate. Working within tolerances of +.000/-.008", the finished product measured 4.630" long and 4.768". When we delivered the steel bent locking lever to our client, they were thrilled to see that we had expertly completed the task and exceeded their expectations.

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Metal Forming of 10B21 Steel Locking Lever Project Highlights

Product Description This steel locking lever is used within an office furniture application
Capabilities Applied/Processes
Primary:
Metal Forming:
  • Roll Groove
  • Bend And Flatten
  • Extrude
  • Swedge
Secondary:
Trimming
Washing
Heat Treatment
  • Heat Treat to 20 to 30 Rc
Plating
  • Zinc Plate
Overall Part Dimensions Length: 4.630"
Width: 4.768"
Tightest Tolerances +.000/-.008"
Material Used 10B21 Steel
Material Finish Black Zinc Phosphate
Industry for Use Office Furniture
Manufacturing Location Greenville, Mississippi
Standards Met Customer supplied print, 2D CAD Drawing
Product Name Steel Bent Locking Lever

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