01
Reconstructed geometry
Original cone angle, clearances, restrictor layout and operating structure.
Industrial-origin engineering case
ALMAZ: the machine the method had to match.
A documented conical gas-static direct-drive spindle connects the original machine, engineering drawings, CAD reconstruction, analytical method chain and recorded operating comparison.
Industrial machineConical gas-static direct-drive spindle.
Drawings digitised in 2009Geometry and design intent reconstructed.
Original designer consultedOperating logic and architecture preserved.
5–10% reported deviationRecorded prototype and operating basis.
The engineering question
Could the original conical support be reconstructed as a repeatable engineering method?
The original spindle was developed through industrial iteration. The later programme recovered the architecture, rebuilt the geometry and connected the gas-film pressure solution to support reactions and machine dynamics.
ArchitectureSingle-support direct drive
Bearing typeConical gas-static radial-thrust support
ApplicationIndustrial slicing of single-crystal ingots
Engineering roleOrigin case behind the AURA conical method chain
Documented baseline
The original drawing fixes the geometry and the design intent.
Recorded baseline input
- Architecture
- Single-support direct drive
- Bearing type
- Conical gas-static radial-thrust
- R / L / C basis
- 175 mm / 97 mm / 15 µm
- Supply range
- 0.38–0.63 MPa
- Restrictors
- 22 · d₀ = 0.5 mm
The values are shown as recorded for the documented origin case.
Reconstruction and method chain
Machine → geometry → pressure solution → support reactions → spindle dynamics.
02
Base-state pressure solution
Pressure field solved over the conical support surface for the reconstructed operating state.
03
Support reactions
Radial, axial and moment capacities are extracted from the pressure solution and converted into an engineering support state.
04
Machine dynamics
Equivalent stiffness and damping are transferred into the spindle model to evaluate the machine dynamic state.
5–10%reported deviation
Applies only to the documented ALMAZ prototype and recorded operating basis. It is not a universal error bound.
05
Industrial check
Calculated behaviour is compared with the documented ALMAZ prototype and its recorded operating basis.
Analytical result · C = 15 µm
The reconstructed ALMAZ operating state produced a complete support definition.
Engineering context:These values belong to the documented ALMAZ geometry at C = 15 µm and pₛ = 0.38 MPa. The reported 5–10% comparison applies only to this documented case.
Industrial check
Bearing physics became evidence when the machine agreed.
Case-specific evidence boundary
5–10%reported deviationThe comparison belongs to the documented ALMAZ prototype and its recorded operating basis. It is retained as an industrial check of this case, not promoted into a universal method-error claim.
What the case established
- The conical support architecture could be reconstructed from the original machine and drawings.
- The pressure solution could be carried into radial, axial and moment reactions.
- The support result could be connected to spindle-level dynamics.
- The recorded operating comparison provided a case-specific industrial check.
Bring a current machine question into the same connected workflow.
Start with loads, RPM, envelope, gas supply and the decision you need.