Kyocera 16IR16UN-TF PR1515 TLG18911D
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- Stock: In Stock
- Model: PR1515
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: TLG18911D
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1. Product Overview
The Kyocera 16IR16UN-TF PR1515 TLG18911D is a Kyocera indexable threading insert for CNC single-point thread turning. Internal right hand geometry cuts Unified 60° threads to ASME B1.1 with pitch 0.16 mm (≈ 158.8 TPI). The full profile (crest-finishing) design finishes thread crests in a single pass for full-spec thread form and gauge-ready results.
Grade PR1515 (MEGACOAT NANO) is a PVD threading grade at HV 3,500 surface hardness and 1,100°C heat stability, keeping thread flanks sharp and wear-resistant for carbon steel, alloy steel, stainless steel, cast iron. Ground flank geometry holds ±15 arcmin flank-angle accuracy.
Threading is pass-schedule critical: for the 0.16 mm (≈ 158.8 TPI) pitch of this insert, the total radial thread depth is ≈ 0.098 mm, typically cut in 6–12 passes with decreasing infeed — a complete worked schedule is given in Section 11. Constant surface speed with an RPM cap and flood coolant at the thread are mandatory for flank finish and tool life.
2. Engineering Quick Reference
| Parameter | Specification |
|---|---|
| Full Product Name | Kyocera 16IR16UN-TF PR1515 TLG18911D |
| Ordering Code | 16IR16UN-TF |
| Thread Standard | Unified 60° |
| Pitch | 0.16 mm (≈ 158.8 TPI) |
| Profile | Full profile (crest-finishing) |
| External / Internal | Internal |
| Hand | Right Hand |
| Grade | PR1515 |
| MPN | TLG18911D |
3. Ordering Code Decoded
| Code Element | Value | Meaning |
|---|---|---|
| Insert Size | 16 | 16 mm (I.C. class) |
| External / Internal | I | Internal |
| Hand | R | Right Hand |
| Pitch Code | 0.16 mm (≈ 158.8 TPI) | Full-profile pitch, or partial-profile range |
| Thread Standard | UN | Unified 60° — ASME B1.1 |
| Chipbreaker Suffix | TF | Thread-turning chip control geometry |
4. Thread Geometry & Engineering Data
| Parameter | Specification |
|---|---|
| Insert Size | 16 mm (I.C. class) |
| Thread Standard | Unified 60° |
| Standard Reference | ASME B1.1 |
| Pitch | 0.16 mm (≈ 158.8 TPI) |
| Profile Type | Full profile (crest-finishing) |
| External / Internal | Internal |
| Hand | Right Hand |
| Flank Angle Accuracy | ±15 arcmin ground flank |
| Crest Finish | Crest-finishing full profile |
| Mounting | Screw-clamp, laydown pocket |
5. Grade Technology
| Parameter | Specification |
|---|---|
| Grade | PR1515 |
| Family | PVD |
| Coating | MEGACOAT NANO |
| Surface Hardness | HV 3,500 |
| Heat Resistance | 1,100°C |
| ISO Range | P15–P30 / M15–P30 |
| Primary Materials | Carbon Steel, Alloy Steel, Stainless Steel, Cast Iron |
6. Grade Application Range by ISO Material Group
| ISO Group | Suitability | Note |
|---|---|---|
| P – Steel | Excellent | First-choice application group |
| M – Stainless Steel | Very Good | Fully supported application group |
| K – Cast Iron | Not Recommended | Outside grade application window |
| N – Non-Ferrous | Not Recommended | Outside grade application window |
| S – HRSA / Titanium | Not Recommended | Outside grade application window |
| H – Hardened Steel | Not Recommended | Outside grade application window |
7. Thread Form Data
Unified 60° per ASME B1.1. UNC/UNF/UNEF imperial threads. Ground flank geometry maintains ±15 arcmin flank-angle accuracy for gauge-passing threads.
8. Recommended Workpiece Materials
Carbon Steel, Alloy Steel, Stainless Steel, Cast Iron.
9. Operation Capability Map
| Operation | Rating | Notes |
|---|---|---|
| External Threading | Good | Internal-series insert preferred |
| Internal Threading | Excellent | Primary |
| Finishing Pass Quality | Excellent | Ground flanks |
| Multi-pitch Flexibility | Fair | Full profile = one pitch per insert |
10. Recommended Cutting Conditions
| Workpiece Material | Vc (m/min) | No. of Passes (typ.) | Radial Infeed per Pass (mm) | Coolant |
|---|---|---|---|---|
| Carbon Steel (S45C/C45, HB 180) | 99–153 | 6–12 | 0.25 → 0.02 (decreasing) | Wet, high volume |
| Alloy Steel (SCM440/4140, HB 280) | 99–153 | 6–12 | 0.25 → 0.02 (decreasing) | Wet, high volume |
| Stainless Steel (SUS304/1.4301) | 77–119 | 8–14 | 0.25 → 0.02 (decreasing) | Wet, high volume |
| Gray Cast Iron (FC250/GG25) | 88–136 | 6–12 | 0.25 → 0.02 (decreasing) | Wet, high volume |
| Nodular Cast Iron (FCD450) | 88–136 | 6–12 | 0.25 → 0.02 (decreasing) | Wet, high volume |
| Heat-Resistant Alloy (Inconel 718) | 24–38 | 8–14 | 0.25 → 0.02 (decreasing) | Wet, high volume |
| Titanium Alloy (Ti-6Al-4V) | 24–38 | 8–14 | 0.25 → 0.02 (decreasing) | Wet, high volume |
11. Infeed Strategy
| Infeed Method | Chip Load Distribution | Recommendation |
|---|---|---|
| Radial infeed | Equal on both flanks | Standard for pitches ≤ 1.5 mm |
| Flank infeed 27–29° | Load on leading flank | Recommended for pitches > 1.5 mm — better chip control & finish |
| Alternating flank | Alternates flanks | Large pitches & difficult materials; evens flank wear |
12. Worked Pass Schedule for This Pitch
| Pass No. | Radial Infeed (mm) | Cumulative Depth (mm) | Stage |
|---|---|---|---|
| 1 | 0.034 | 0.034 | Roughing |
| 2 | 0.025 | 0.059 | Roughing |
| 3 | 0.018 | 0.077 | Roughing |
| 4 | 0.012 | 0.089 | Roughing |
| 5 | 0.006 | 0.095 | Finishing / spring |
| 6 | 0.002 | 0.097 | Finishing / spring |
Thread depth: ISO 60° external depth ≈ 0.6134 × P = 0.098 mm for P = 0.16 mm. Decreasing infeed keeps chip section constant and flanks clean.
13. Wear Limits
| Criterion | Limit | Action |
|---|---|---|
| Flank wear | 0.15 mm | Index insert — thread accuracy is wear-critical |
| Nose chipping | Any | Replace; check infeed & rigidity |
| Thread gauge failure | Worn or mis-set insert | Compensate offset or index insert |
14. Compatible Holders
| Compatible Holder | Type | Notes |
|---|---|---|
| KTNR/L 1640-16 | External threading holder | Laydown pocket, shim-protected seat |
| S16-KTNR/L 16 | Internal threading bar | Steel or carbide shank |
| Screw-on holders | Compact holders | Small pitches & Swiss machines |
15. Troubleshooting Guide
| Problem | Cause | Solution |
|---|---|---|
| Torn thread flanks | Built-up edge / low Vc | Increase Vc; ensure coolant; sharper grade |
| Flank chipping | Vibration / infeed too large | Reduce last-pass infeed to 0.02–0.05 mm; check rigidity |
| Wrong pitch diameter | Tool wear / wrong offset | Measure & compensate; index insert |
| Poor thread finish | Too few passes | Increase pass count; final spring pass at 0.02 mm |
| Chatter on long threads | Workpiece deflection | Use steady rest; reduce Vc; flank infeed |
16. Operating Guidelines
- Set center height precisely — threading is highly sensitive (±0.03 mm)
- Use constant surface speed with an RPM cap
- Always finish with a spring pass of 0.02 mm radial infeed
- Flood coolant directly at the thread — threading heat is concentrated
- Never re-cut a pass with a worn edge — gauge failure risk
- Index at the first sign of flank wear on gauge-critical threads
17. Quality Assurance
| Quality Attribute | Specification |
|---|---|
| Manufacturing Standard | ISO 9001:2015 certified Kyocera production, Japan |
| Dimensional Inspection | 100% inspection with CMM-class tolerance control |
| Edge Inspection | Microscopic cutting-edge inspection on every piece |
| Traceability | Laser-marked lot code on packaging; full batch traceability |
| Country of Origin | Japan |
18. Packaging & Ordering
| Parameter | Specification |
|---|---|
| Manufacturer Part Number | TLG18911D |
| Ordering Code | 16IR16UN-TF |
| Standard Packaging | 5 or 10 inserts per box |
| Minimum Order Quantity | 1 box |
| Stock Status | In stock — ships within 1–3 business days |
| Warranty | 90-day manufacturing-defect warranty |
19. Catalog Meta Data
| Parameter | Specification |
|---|---|
| Brand | Kyocera |
| Product Type | Indexable Threading Insert |
| Full Product Name | Kyocera 16IR16UN-TF PR1515 TLG18911D |
| Code | 16IR16UN-TF |
| Thread Standard | Unified 60° |
| Pitch | 0.16 mm (≈ 158.8 TPI) |
| Ext/Int | Internal |
| Hand | Right Hand |
| Grade | PR1515 |
| MPN | TLG18911D |
| Origin | Japan |
20. Frequently Asked Questions
Q: What thread does the 16IR16UN-TF cut?
A: Unified 60° (ASME B1.1) at pitch 0.16 mm (≈ 158.8 TPI) — full profile (crest-finishing).
Q: How many passes do I need for the 16IR16UN-TF?
A: Typically 6–12 passes; the full worked schedule for this pitch is in Section 11 (total depth ≈ 0.098 mm).
Q: Radial or flank infeed with the 16IR16UN-TF?
A: Radial infeed is fine at this pitch; above 1.5 mm pitch use 27–29° flank infeed.
Q: Which holders fit the 16IR16UN-TF?
A: KTNR/L-style laydown threading holders in size 16 — see Section 14.
Q: Why did my thread fail the gauge with the 16IR16UN-TF?
A: Most often flank wear — threading inserts must be indexed at 0.15 mm VB, earlier than turning inserts. Verify offset after indexing.
21. Engineering Support
Free threading support from Kyotow.com — pass-count calculation, infeed tables and holder selection for your thread spec.
Why Buy from Kyotow.com? 100% genuine OEM Kyocera cutting tools sourced through authorized channels. Full manufacturer warranty & batch traceability. Fast worldwide shipping with tracked delivery. Free engineering support for cutting parameter selection, grade choice and application troubleshooting.
✓ Genuine Kyocera Product
| Manufacturer | Kyocera Corporation |
|---|---|
| Status | Verified Original Product |
| Quality Assurance | Guaranteed Genuine Kyocera Components |
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正確な製品情報
Following the Japanese philosophy of Monozukuri (物の作り), we strive to maintain exceptional technical accuracy throughout our product catalog.
- Confirm dimensions, geometry, coating, and grade using the official Kyocera item code.
- Technical datasheets are available upon request.
- For technical clarification contact sales.kyotow@gmail.com.
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100% Accuracy Guarantee:
Full refund or replacement will be provided if the verified Kyocera item received differs from the official item code specified in your order confirmation. -
Order Finality:
Due to automated procurement systems connected directly to global factory distribution channels, orders cannot be modified or cancelled once processing has commenced. -
Technical Assistance:
Please verify machine compatibility, insert geometry, coating, and application grade before placing your order.
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Why are our prices so low? (価格が安い理由): Kyotow sources genuine Kyocera tools directly from domestic Japanese distribution networks, completely bypassing the steep regional markups, localized sales overhead, and heavy middleman margins of Western distributors. We pass 100% of those structural savings directly to your machine shop.
Kyotowは日本の国内流通ネットワークから京セラ正規品を直接仕入れることで、欧米の現地代理店による大幅な上乗せ価格や営業コスト、中間マージンを完全に排除しています。その構造的メリットを、お客様の加工現場へ100%還元いたします。
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