Straight coolant holes carbide rods are the backbone of many precision machining applications, combining durability, precision, and reliability. In this guide, we’ll delve into everything you need to know about straight coolant holes carbide rods. From their composition to their applications, production processes, and beyond, this comprehensive guide will help you become an expert on the topic.
What are Straight Coolant Holes Carbide Rods?
Straight coolant holes carbide rods are cylindrical rods made from tungsten carbide with integrated straight coolant holes running longitudinally. These holes improve machining performance by allowing coolant to flow directly to the cutting edge, reducing heat buildup, and enhancing tool life.
Raw Material and Composition Analysis of Straight Coolant Holes Carbide Rod
The strength and durability of these rods come from their material composition. Let’s break it down.
- 炭化タングステン（WC）： Forms the base matrix, known for its exceptional hardness and wear resistance.
- コバルト（Co）： Acts as a binder, providing toughness and elasticity.
- Metallic Additives: Often include tantalum (Ta), titanium (Ti), or niobium (Nb) to enhance specific properties.
- 粒の大きさ： Fine-grained powders (0.5-2 µm) are used for higher hardness and strength, while coarse grains (>2 µm) add toughness.
Composition Breakdown of Straight Coolant Holes Carbide Rods
| 素材 | 機能 | Typical Proportion (%) |
|---|---|---|
| 炭化タングステン | Base material for hardness | 70-90 |
| コバルト | Binder for toughness | 6-12 |
| Metallic Additives | Property enhancers (e.g., Ta, Ti) | 0-10 |
| Others (e.g., Ni) | Fine-tuning mechanical behavior | <1 |
Production Process Flow of ストレートクーラントホール 超硬ロッド
Creating straight coolant holes carbide rods involves precision engineering. Here’s a detailed walkthrough of the production process:
- パウダーの調製： High-purity tungsten carbide and cobalt powders are mixed with additives and binders.
- プレスする： The powder mixture is pressed into cylindrical green compacts with straight holes created using pin molds.
- Pre-Sintering: These green compacts are pre-sintered to achieve initial strength.
- Final Sintering: Rods are sintered in a high-temperature furnace, where tungsten carbide and cobalt bond chemically.
- 研削と研磨： Rods undergo precise machining to achieve dimensional accuracy and surface finish.
Visual Representation:
| ステップ | Process Description |
|---|---|
| パウダーの準備 | Mixing tungsten carbide, cobalt, and additives |
| プレス | Forming the raw shape with holes |
| 焼結前 | Strengthening green compacts |
| 最終焼結 | Heating to bond the materials |
| Grinding and Polishing | Achieving final size and surface quality |
Applications of Straight Coolant Holes Carbide Rod
Key Industries Utilizing These Rods
Straight coolant holes carbide rods are essential in industries demanding precision and durability. Let’s explore their common applications:
| 産業 | 申し込み |
|---|---|
| 自動車 | Drilling engine blocks, crankshafts, and precision components |
| 航空宇宙 | Cutting heat-resistant superalloys |
| メディカル | Manufacturing surgical tools and orthopedic implants |
| エレクトロニクス | Machining small, precise parts |
| 一般機械加工 | High-speed and precision milling, drilling, and cutting |
Why Are They Preferred?
- Enhanced Cooling: Direct coolant flow reduces thermal damage.
- 工具寿命の向上： Lowers wear and tear.
- High Precision: Maintains accuracy in demanding applications.
材料特性 ストレートクーラントホール 超硬ロッド
Let’s analyze the properties that make these rods indispensable.
| プロパティ | 説明 |
|---|---|
| 硬度（HRA） | 89-93, ensuring wear resistance |
| 密度 (g/cm³) | 14.0-14.5, denoting material compactness |
| 曲げ強度 (MPa) | 2800-4000, allowing high stress handling |
| 熱伝導率 | Excellent, enhancing heat dissipation |
| 耐食性 | Resistant to most chemical attacks |
Comparison of Metal Powder Models
Below are some specific tungsten carbide powder models used in straight coolant holes carbide rods:
| モデル | 説明 |
|---|---|
| WC-10 | Standard grain size, suitable for general-purpose machining. |
| WC-20 | Fine grain, designed for high-precision drilling applications. |
| WC-30 | Medium grain, balanced between toughness and wear resistance. |
| WC-40 | Coarse grain for heavy-duty applications with extended tool life. |
| TaC-1 | Tantalum-enriched powder for added heat resistance. |
| TiC-2 | Titanium additive for corrosion-resistant applications. |
| NbC-3 | Niobium carbide for improved toughness in challenging conditions. |
| Ni-Co Blend 1 | Nickel-cobalt blend for improved flexibility in impact-prone environments. |
| Ultra-Micron | Ultra-fine powder for ultra-precise machining tasks. |
| Eco-Carbide | Environmentally friendly composition with reduced cobalt content. |
仕様、サイズ、形状、規格
Specification Overview
| パラメータ | Range/Options |
|---|---|
| 直径 | 3 mm to 30 mm |
| 長さ | 50 mm to 330 mm |
| Coolant Hole Diameter | 0.5 mm to 5 mm |
| 公差 | Up to ±0.01 mm |
| 規格 | ISO, DIN, ANSI |
Selecting the Right Straight Coolant Holes Carbide Rod
Here’s how to choose the perfect rod for your needs:
考慮すべき要素
| ファクター | 説明 |
|---|---|
| 材料特性 | Match hardness, toughness, and wear resistance to the application. |
| Coolant Hole Size | Ensure compatibility with your cooling system. |
| Tolerance Requirements | Check dimensional precision needs. |
| Price vs. Performance | Balance cost with durability and performance benefits. |
利点と限界
| メリット | 制限事項 |
|---|---|
| Enhanced tool life due to effective cooling. | Higher initial cost compared to standard rods. |
| Improved machining performance at higher speeds. | Specialized handling required during production. |
| Versatile applications in multiple industries. | May require specific coolant systems for optimum performance. |
サプライヤーと価格詳細
Top Suppliers
| サプライヤー | 所在地 | 価格帯（米ドル） |
|---|---|---|
| ケナメタル | グローバル | $30 – $150 per piece |
| サンドビック | スウェーデン | $40 – $200 per piece |
| セラチジット | ルクセンブルク | $50 – $180 per piece |
| Zhuzhou Cemented | 中国 | $20 – $100 per piece |
| 住友電工 | 日本 | $35 – $160 per piece |
よくあるご質問
| 質問 | 回答 |
|---|---|
| What are straight coolant holes for? | They allow coolant to reach the cutting edge, reducing heat and extending tool life. |
| How are they better than solid rods? | They improve cooling and are more effective in high-speed machining. |
| What industries use them? | Automotive, aerospace, medical, electronics, and general machining. |
| Can I use these rods without coolant? | It’s not recommended, as they’re designed for use with a cooling system. |
