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How Bending Works

Bending: the route, the tolerances it holds, materials and design tips, with an indicative cost. One of 56 processes in the free finder.

Sheet formingFamily
+/-0.2mmTypical tol.
5Route steps
89Parts in finder

Sheet-metal bending (press braking) forms a straight bend in sheet by pressing it into a V-die, building a 3D part from flat stock through a sequence of bends.

At a glance

When to use it, and when not

Best for

Enclosures, brackets, panels and chassis in low to high volume.

Watch for

Springback and minimum flange and bend-radius rules; complex bends can collide.

Step by step

The typical route

Raw material to finished part. Steps vary with material, volume and tolerance; this is the free route from the finder.

  1. Blank

    Cut the flat blank.
    Tooling Laser   Tolerance -   Lead -
  2. Bend

    Form flanges on the press brake in sequence.
    Tooling Press brake   Tolerance -   Lead -
  3. Tap/insert

    Tap holes or press in clinch nuts.
    Tooling -   Tolerance -   Lead -
  4. Finish

    Deburr, then plate or powder-coat.
    Tooling -   Tolerance -   Lead -
  5. Inspect

    Check angles and flange dimensions.
    Tooling -   Tolerance -   Lead -
Precision

Tolerances it can hold

TYPICAL TOLERANCE IT CAN HOLD
+/-0.2mm typicalcoarsefine+/-1mm+/-0.1mm+/-0.01mm+/-0.005mm
Where this process typically lands. Tighter is possible with extra operations like grinding, at higher cost.
Materials

Materials it suits

GradeWhy it suits this
Mild steelEasy to form
Aluminium 5052Formable, corrosion
Stainless 304Springback higher
Design

Design tips

A few general pointers for Bending. The full, part-specific DFM list is in the dossier.

  • Bend radius too tight. Use >=1x thickness inside radius.
  • Flange shorter than brake minimum. Lengthen the flange.
Cost

What it costs

Press-brake forming; cost scales with number of bends and setups. Few bends, generous tolerance = cheap.

PER-PART COST vs VOLUME
one-offat volumeVolume per order, low to highCost per part
Per-part cost drops as volume spreads tooling and setup over more parts. The exact figures for your part at your volume, in your currency, are in the dossier.
MODEL EST.
$5.9 to 10 per part at 1 off
A rough ballpark only. The dossier gives should-cost at your exact volume and currency, with the full breakdown.
GET THE FULL DOSSIER

Everything you need to quote and source it

The free route above is yours. To actually put a number on this process and buy it well:

  • Should-cost at your exact volume in 12 currencies, with the material, processing, tooling and overhead breakdown
  • Who to source from, typical MOQ and lead time, and the exact RFQ checklist to send
  • A quote checker that tells you if a supplier quote is fair, and the red flags to watch
  • The full DFM list and a ready-to-send RFQ draft

One part is $2, once. Pro is every part, plus the tracker, compare and sync. Cancel anytime.

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FAQ

Frequently asked questions

How is a part made by Bending?
Sheet-metal bending (press braking) forms a straight bend in sheet by pressing it into a V-die, building a 3D part from flat stock through a sequence of bends. The typical route is: Blank; Bend; Tap/insert; Finish; Inspect. Enclosures, brackets, panels and chassis in low to high volume.
What does Bending cost per part?
It depends on size, tolerance and volume. As a rough ballpark it starts around $5.9 to 10 per part at low volume and falls with quantity. The dossier gives should-cost at your exact volume and currency. Model estimates, not quotes.
What tolerance can Bending hold?
Typically about +/-0.2 mm, tighter with extra finishing operations at higher cost.
What materials suit Bending?
Common choices are Mild steel (Easy to form); Aluminium 5052 (Formable, corrosion); Stainless 304 (Springback higher).
See the exact route and should-cost for your part

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