DTS Drill-Head Selection: Cutting Task, Construction and Interfaces
Select an ejector drill head by the incoming bore, tool series and complete double-tube assembly rather than diameter alone.
Drill Head
Ejector Drill-Head Simulation: Reading the SPH–DEM Model
Understand what the published ejector-head SPH–DEM model represents, what it omits and how its design comparison connects to physical trials.
SPH Ejector Drill-Head Research: What the Physical Tests Showed
Read the tested chip-mouth changes, minimum-flow comparison and transfer limits for a 30 mm ejector head in 42CrMo4+QT.
SPH-Optimized Ejector Heads: Research Results and Production Questions
Separate reported ejector-drill flow improvements from the compatibility, durability and commercial evidence needed for production.