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Threaded 10mm Iron Rod Crank Bending | Lathe + CNC
10mm iron rods threaded on the lathe then CNC bent into crank link rods, batch output verified on drawings. Machining and bending combined hardware.
Key Specifications
- Materials
- Iron rod, 10 mm diameter
Key Features
- Threads cut first, bend added without damage
- Crank planes indexed in one clamping
- Batch parts match the customer print
- Robust 10mm bar for load-bearing links
How Do Threaded Link Rods Keep Their Angles Across a Batch?
Short answer: One clamping, indexed planes. This video shows 10mm iron rods threaded on the lathe, then bent into crank links on a CNC station - every finished rod laid on the drawing to prove the geometry.
What the Video Demonstrates
| Step | Process | Result |
|---|---|---|
| 1 | Lathe threads rod ends | Ready-to-fasten |
| 2 | Rod clamped at bend die | Single datum |
| 3 | Crank planes formed | Locked angles |
| 4 | Overlay on print | Batch verified |
Key Applications
- Gear-shift and clutch linkage cranks
- Support and adjuster rods
- Machine handle spindles
Thread-First vs Bend-First
| Sequence | Risk | Control |
|---|---|---|
| Thread first | Bend marks threads | Keep bend zone clear, support dies |
| Bend first | Thread setup on curved bar | Extra fixturing |
FAQ
How far is the bend from the thread? The program sets a minimum setback; the die nose supports the bar right up to it.
Can stainless run this flow? Yes - same process with springback compensation for stainless grades.
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