Engineering files and technical resources

1. 01

   CAD / DXF / STEP

   Open a product model to download drawings and 3D geometry.

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2. 02

   Manufacturing process cards

   Product pages provide Excel process cards for each supplied material route.

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3. 03

   Product technical dossiers

   Product data, inspection requirements and purchasable variants are grouped by model.

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4. 04

   FEM and test evidence

   Summaries are public; member data requires sign-in and full evidence may require approval.

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5. 05

   Presetting FEM research series (16 volumes)

   The full research chain from problem reframing to the production route: 13-24 pages per volume at H0/M1/S2 evidence levels, PDF downloads after sign-in.

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6. 06

   Standards and technical resources

   Files or official source links are shown according to their usage rights.

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7. 07

   Calculation reports

   Sign in after calculation to save the project and generate a branded PDF.

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Sixteen self-contained research volumes (288 pages) tracing the presetting FEM programme from problem reframing to the production route. Evidence ceiling H0/M1/S2 - no volume claims material calibration or production approval. PDFs are member downloads; each volume lists its evidence level.

1. S01

   Problem Reframing and the Complete Research TimelineH0 · 24 pp · 1260 KB

   Why did the disc spring presetting simulation research take so many detours? What exactly was wrong with "99% of settling finished in the first cycle" — and which conclusions remain usable today?

   H0Download PDF →
2. S02

   Standard Regimes, Production Press Forces and the Time-Cycle TradeoffH0 · 17 pp · 957 KB

   How do the standard's "2x F75 at flat position", "at least 12 hours" and "at least 5 compressions" relate to production's "5x/10x forces and 2-8 s holds"? Can higher force buy a shorter cycle time?

   H0Download PDF →
3. S03

   Database/STEP-Driven True Four-Fillet Geometry and Height MeasurementM1 · 15 pp · 1345 KB

   Why do "four fillets" and "height measurement" matter so much in disc spring presetting simulation — and what goes wrong with simplified fillets and max-minus-min node heights?

   M1Download PDF →
4. S04

   Almen-Laszlo Theory, Fillet Correction, F75 and Flat-Load BaselinesM1 · 13 pp · 761 KB

   How far apart are a disc spring's F75, flat load and production presetting force? Where does the Almen-Laszlo theory remain trustworthy — and what fallback serves products without a database F75?

   M1Download PDF →
5. S05

   Early Elastoplastic Models and the First-Cycle-99% Root CauseH0 · 16 pp · 1076 KB

   Why did the early disc spring presetting simulations finish about 99% of all settling in the first cycle — and why can a converged, stable-looking model still be untrustworthy?

   H0Download PDF →
6. S06

   Hold, Release, Perzyna and Kelvin Dual Time BranchesM1 · 18 pp · 987 KB

   Why does a disc spring keep settling during the presetting hold, and why does its height keep creeping back over seconds after release — shifting the next cycle's starting point?

   M1Download PDF →
7. S07

   Cycle State Inheritance, Residual Stress Transfer and Remesh/MAPSOLVEM1 · 16 pp · 856 KB

   How do the second and later presetting cycles inherit the plastic deformation and residual stress of the first? When is remeshing required, and can state mapping lose information?

   M1Download PDF →
8. S08

   Cyclic Plasticity Model Routes: Chaboche, OW-II, AKO and J-SH0 · 21 pp · 935 KB

   Which cyclic plasticity model should a disc spring presetting simulation use? How do the Chaboche, Ohno-Wang II, AKO and Jiang-Sehitoglu routes differ — and why was the current combined model chosen?

   H0Download PDF →
9. S09

   ANSYS UserMat Engineering Implementation, Build Compatibility and Implicit Integration GatesM1 · 19 pp · 804 KB

   How do you make sure a hand-written material routine (UserMat) is genuinely in use inside ANSYS — and what must compilation, linking, integration and gate testing each cover?

   M1Download PDF →
10. S10

    Press Control Regimes, Flat-Position Stiffness Jump and Force-Limit ServoM1 · 17 pp · 983 KB

    How do fixed gap, constant force, displacement servo and hybrid control differ in disc spring presetting simulation? Why can a nominal 10x F75 become an actual 18.5x? And how can one controller serve products from 6 mm to 600 mm?

    M1Download PDF →
11. S11

    The Failed 51-Case DOE, Perzyna Gate Tests and Solver-Chain RepairH0 · 16 pp · 784 KB

    Why did the large parameter search (DOE) fail mid-run? How was the solver chain repaired to batch readiness - and what must be checked before any future batch?

    H0Download PDF →
12. S12

    P324 HRC46 Disc Spring 27-Case Presetting FEM Technical AnalysisS2 · 20 pp · 2216 KB

    After the combined time-dependent material model is placed into the P324 disc spring presetting FEM, can it simultaneously reproduce the three things that actually happen in production — continued settling during force hold, delayed rebound after release, and cycle-by-cycle decay of settlement? And which time and pressure factors deserve physical calibration first?

    S2Download PDF →
13. S13

    HRC, Monotonic Strength, Cyclic Yield Surface and 51CrV4/60Si2MnA EvidenceH0 · 19 pp · 919 KB

    What data does a disc spring presetting FEM actually need for its material input? Is an HRC46 plus a pair of 1550/1600 MPa values usable? And why was the hardness-dimension parameter sweep paused?

    H0Download PDF →
14. S14

    Residual Stress Fields, Surface Tension-Compression Relations and Cyclic Stability CriteriaM1 · 17 pp · 1523 KB

    How should post-presetting residual-stress contour plots be read? Is the "compression on top, tension below" rule of thumb valid? And when is a cycle stable enough to stop?

    M1Download PDF →
15. S15

    Database Batching, STEP Binding, Checkpoint Resume and H0 Bisection InversionM1 · 19 pp · 871 KB

    How do you batch-compute presetting FEM for more than 1500 products? What happens on interruption, how is the pre-presetting height H0 inverted, and how do batch results reach the website?

    M1Download PDF →
16. S16

    6-600 mm Scale Extension, Production Calibration and the Final RouteM1 · 21 pp · 1037 KB

    Once the single P324 simulation is validated, how is it safely extended to the whole product database - and which calibration and validation steps remain before production?

    M1Download PDF →