A: Look for shops that don't lock into one process.
A dedicated lathe is efficient for symmetric features, but it requires starting from oversized bar stock, resulting in 55–65% of the material being scrapped on parts with irregular contours.
We assess upfront whether the part has flat faces or slots. If it does, we lead with milling from a pre-formed billet to remove only 20–30% waste, then lathe-finish the rounds. A solar tech buyer switched their aluminum rotors to this hybrid last month — waste dropped from 58 % to 24 %, saving $14k on a 1,200-piece run.
A: Flip the order and control the heat.
Milling first on a high-rigidity 4-axis center dissipates 80 % of the heat in roughing passes, leaving the lathe to do clean, low-heat finishing on hardened areas.
No fancy additives — just logical sequencing. We locked in Rockwell C 58–62 on 52100 bearing races for an auto supplier, zero failures in 9,500 pcs after ditching the old lathe-first habit.
A: Demand machines that run unattended.
Standalone mills need constant operator tweaks for chip evacuation, but a mill-turn lathe with auto-bar feeders and robotic arms cycles through 1,000+ parts overnight.
We equip all 22 mill-turn stations this way: a UK defense client got 800 titanium fittings in 9 days instead of 22, no overtime, no rush charges.
A: Yes, by eliminating the transfer.
Long shafts warp 0.01–0.02 mm when unclamped from the lathe for milling. We use extended-bed mill-turns (up to 2,500 mm) to machine all features — turning, milling, even engraving — in one continuous hold.
A marine engine maker hit ±0.003 mm end-to-end on 1,800 mm propeller shafts, winning a $420k contract they lost twice before.
A: Absolutely, if they're built for flexibility.
We hold 50+ alloys in-house: a lathe for quick bar-fed runs, and milling for custom blanks when stock is tight. Last quarter, when the 6061 bar was backordered, we pivoted to plate milling for a Canadian robotics firm — no delay, same spec, and 18 % lower material cost.
Ready to upgrade your supply chain without the usual headaches?
Check out our capabilities at www.simituo.com — quotes in 12 hours or less.
When Precision B
READ FULL