As the "backbone" and "power converter" of an engine, the crankshaft is the core component responsible for power output. Its primary function is to convert the linear reciprocating motion of pistons into rotational motion, delivering power externally.

Crankshafts are typically manufactured from high-strength forged steel or ductile iron. While these materials offer excellent performance, their high hardness and toughness make them difficult to machine. This accelerates tool wear and demands tools with exceptional hardness, red hardness, and wear resistance, significantly increasing tooling costs.

Crankshaft Oil Holes

Machining crankshaft oil holes is one of the most critical and challenging processes, as the hole depth often exceeds 10 times the diameter. Particularly for steel crankshafts, chip evacuation is the most common issue during oil hole machining. Ensuring smooth and efficient chip removal is essential.

For crankshaft oil hole machining, Minimal Quantity Lubrication (MQL) is recommended as the cooling method. MQL not only facilitates efficient chip evacuation but also reduces cutting fluid usage and后期 maintenance costs, while minimizing environmental and operator hazards.

To address these challenges, Yongpu Precision has developed specialized deep hole drills tailored for crankshaft oil hole machining, providing a reliable solution for efficient crankshaft oil hole processing.

1. Extremely high positional accuracy requirements for the flange holes.

2. Strict perpendicularity requirements between the hole axis and flange face.

3. Workpiece shape and fixture influences, as well as deformation and vibration during machining, negatively impact tool life.

Yongpu Precision's uniquely designed solid carbide internal coolant drills offer mature technology and proven success in crankshaft flange hole machining:

1. Unique Peripheral Edge Design: Ensures minimal peripheral wear even at the end of tool life, guaranteeing stable performance and regrinding results.

2. Higher Cylindricity: Delivers superior hole geometry.

3. Specialized Centering Design: Achieves higher positional accuracy for machined holes.

Yongpu Precision's specialized deep hole drills for crankshaft oil holes and solid internal coolant drills (YPP Drill®) offer exceptional machining efficiency, extended tool life, and impeccable hole quality, making them the key to success in crankshaft machining.

Yongpu Precision is your reliable partner for reducing costs, improving efficiency, and enhancing quality. Let us work together to build a successful future!

Below is the featured content from Issue 10 of the magazine