How modern CNC lathes can produce internal keyways and splines without dedicated broaching equipment Many machine shops assume that producing internal keyways and splines requires a dedicated broaching machine, slotter, or secondary operation. While those methods are still used in some applications, modern CNC lathes are capable of performing many
Category: CNC Machining Tips
Broaching Internal Splines in Titanium and Inconel
Setup, tooling, and programming considerations for demanding materials Titanium and Inconel are commonly selected for applications that require high strength, durability, and long service life. When those parts require internal splines, the broaching process demands careful attention to tooling, setup, and programming. While these materials can be successfully broached, they
Broaching Corners in Internal Hexes and Squares with CNC Broach Tools
Broaching internal hexes and squares can be handled with the same CNC Broach Tools holders and inserts already used for keyways, splines, and special profiles. Instead of broaching the entire shape in one pass, the process is usually done by machining the main walls first, then broaching each corner individually.
Why Does the Insert Need to Fully Clear the Cut Before Retracting?
Why exit clearance is critical for stable CNC broaching cycles Retracting the tool before the insert has fully cleared the cut can place side load on the cutting edge and shorten tool life. In CNC broaching, the insert is intended to cut under straight-line force, so exit clearance is an
How Single-Operation Broaching Reduces Setup Time and Floor Space
A practical way to increase throughput without adding equipment Every additional setup adds time, cost, and risk to a part. When a keyway or internal spline requires moving the part to a secondary machine, the production process becomes longer and more complex. Parts must be handled again, re-indicated, and re-verified.
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