# The Ultimate Guide to 1308 PCD: Specifications, Applications, and Selection Tips
Keyword: 1308 PCD
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What is 1308 PCD?
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In the world of industrial cutting and machining, Polycrystalline Diamond (PCD) tools are renowned for their exceptional hardness and longevity. Among the various standardized PCD cutter shapes, the 1308 PCD insert stands out as a versatile and widely used geometry. This guide delves into everything you need to know about this specific tool, from its technical specifications to its optimal applications.
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1308 PCD Specifications and Geometry
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The “1308” designation follows a common industry code. Typically, it refers to a specific insert shape and size. A standard 1308 PCD insert is a rhombic (diamond-shaped) 55-degree parallelogram. Key specifications often include:
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Precise Dimensions and Angles
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• **Inscribed Circle (IC):** Usually 1/2 inch (12.7mm).
• **Thickness:** Commonly 3/32 inch (2.38mm).
• **Cutting Edge Length:** Provides a robust edge for various operations.
• **Corner Angle:** The 55-degree point angle offers a good balance between strength and accessibility.
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Primary Applications of 1308 PCD Inserts
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Due to their geometry and PCD material properties, 1308 inserts excel in machining non-ferrous metals and abrasive non-metallic materials. Their primary strength lies in finishing and medium-to-light roughing operations.
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Ideal Materials for Machining
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• **High-Silicon Aluminum Alloys:** Perfect for automotive engine blocks and aerospace components.
• **Copper, Brass, and Bronze:** Delivers mirror-like finishes without material adhesion.
• **Carbon Fiber Reinforced Polymers (CFRP) & Plastics:** Provides clean cuts with minimal delamination.
• **Wood Composites & MDF:** Extremely resistant to abrasive wear in woodworking tools.
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How to Select the Right 1308 PCD Tool
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Choosing the correct PCD insert involves more than just the shape. Consider these factors for optimal performance and cost-efficiency.
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Grading, Edge Preparation, and Toolholder
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• **PCD Grade:** Select a grade with the appropriate grain size for your material (finer for finishing, coarser for abrasives).
• **Edge Honing:** A honed or chamfered edge increases strength and prevents chipping.
• **Compatible Toolholder:** Ensure you use the correct style (e.g., positive/negative rake) and clamping mechanism (screw-on, clamp) holder for the 1308 geometry.
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Frequently Asked Questions (FAQ)
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Q: Can 1308 PCD cut steel?
A: No. PCD chemically reacts with ferrous metals at high temperatures, leading to rapid wear. It is exclusively for non-ferrous and non-metallic materials.
Q: What is the advantage over carbide?
A: In suitable materials, PCD offers vastly superior tool life—often 100x longer—allowing for higher speeds, better finish quality, and reduced machine downtime.
Q: How do I identify a worn 1308 PCD insert?
A> Look for increased cutting forces, poor surface finish