Success Stories

Success Case: Solid Carbide Drill Raises Wheel Hub Drilling Efficiency by 28%

CutStars GXD solid carbide drill on 55 steel wheel hubs: 1,100 parts per drill vs 1,000 before, speed up from 56 to 71 m/min, +28% efficiency, lower cost per part.

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The Application

A manufacturer machining wheel hub units in 55 steel (HB 200) on a Mazak vertical machining center (BT40), with external coolant. Each part requires 5 holes at 12.5 mm depth.

Before: The Previous Drill

The previous tool was a D15.5 x 3D external-coolant drill from another supplier, running at Vc 56 m/min and feed 0.22 mm/rev (G81). Tool life reached 1,000 parts per drill, equal to 62.5 m of total drilling length.

The CutStars Solution

CutStars GXD030-1550 solid carbide drill, same D15.5 x 3D specification and external coolant, run at Vc 71 m/min with the same feed of 0.22 mm/rev (G81). See CutStars solid carbide drills for the full drill range.

Results

  • Parts per drill: 1,000 → 1,100 (+10%)
  • Total drilling length per drill: 62.5 m → 68.75 m
  • Cutting speed: 56 → 71 m/min
  • Machining efficiency: +28% (as calculated in the field test report)
  • Cost per part: reduced by RMB 0.2, based on a machining cost of RMB 150 per hour
Same hole quality, longer tool life, and a higher cutting speed — so the cost of every hole went down.

More Field Test Results

  • Gear steel (20CrMoTi, HRC 35-40): CutStars GXD0300900 drilled 480 parts per drill vs 440 for the previous tool; total life 45 m vs 40 m, at the same Vc 50 m/min and 0.12 mm/rev feed.
  • Stainless steel distributor head (06Cr19Ni): CutStars GSD030S-1800 completed 460 holes per drill vs 380 for the previous tool, at Vc 40 m/min and 0.15 mm/rev feed.

Send Us Your Application

Tell us your workpiece material, hole diameter and depth, and the tool you currently use. We will match a solid carbide drill to your application and help you run the same comparison. Contact: info@cutstars.com or WhatsApp +86-151 1148 8179.