What can cut tungsten carbide?
Known as the “teeth of industry”, tungsten carbide is widely used in machining, mining drilling and precision mold manufacturing due to its ultra-high hardness and wear resistance.
However, the extreme properties of this material also bring two common problems: How to effectively cut tungsten carbide? And where can high-quality cemented carbide materials be obtained?
一、Core technology and tool selection for tungsten carbide cutting
1. Cemented Carbide Blades: The Preferred Tool for Cutting Tungsten Carbide
When faced with superhard materials such as tungsten carbide (Cemented Carbide), conventional tools often fail quickly. At this time, the strategy of “hard against hard” is the most effective:
Material matching: Choose cemented carbide-cobalt-based cemented carbide blades (Hardmetal), whose hardness can reach HRA 90-93, which effectively counteracts the hardness of cemented carbide (HRA 92-94).
Coating reinforcement: We recommend using diamond-coated inserts.The 2-5μm diamond layer deposited on the surface can reduce the friction coefficient by 40%, significantly extending the tool life.
Operating parameters:
Cutting line speed: 12-18 m/min
Feed rate: 0.05-0.1 mm/r
Coolant: Water-based emulsion (recommended flow rate ≥5L/min
二、Recommended suppliers of high-quality tungsten carbide materials
The quality of cemented carbide directly affects the performance of the final product. According to ISO 4499-2 standard, high-quality materials should have a density of ≥14.8 g/cm³ and the cobalt content should be controlled at 6-15%.
Sandvik (Sandvik, Sweden)
Core products: mining drill bits, wear-resistant liners
Technical highlights: ultra-fine grain technology (grain size 0.5-0.8 μm), bending strength ≥ 4000 MPa
Applicable scenarios: heavy-load impact conditions
Kennametal (Kenna Metal, USA)
Core products: turning/milling inserts
Technical highlights: original KAR85-200 coating, heat resistance up to 1200℃
Service advantages: support 72-hour fast sample delivery
Puwei (Puwei)
Core products: carbide round bars/end mills/turning/milling inserts
Technical highlights: original KAR85-200 coating, heat resistance up to 1200℃
Service advantages: support 72-hour fast sample delivery
The essence of cutting tungsten carbide is the precise combination of material science and processing technology.
From the perspective of tool selection, carbide inserts are still the most economical and efficient solution;
In terms of material procurement, it is necessary to reasonably allocate the procurement ratio between imported brands and domestic suppliers based on budget and performance requirements.
