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Double-sided grinding and thinning of automotive connecting rods

Double-sided grinding and thinning of automotive connecting rods is a high-precision process in the manufacturing of core engine components. It aims to precisely control the overall thickness and geometric tolerance of the connecting rod by synchronously grinding the two end faces of the big end and small end, to meet the assembly requirements of high power density and low friction loss of the engine.

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Typical processed parts

Equipment highlights


Workpiece dimensions: Length 250mm, Thickness 28.4mm
Workpiece material: 45Cr steel
Rockwell hardness: 32-36
Removal amount: 0.8mm
Processing equipment: YHDM750A high-precision vertical double-ended grinding machine
Processing method: Swing grinding
Processing technology: Double-sided grinding and thinning
Processing efficiency: 30 s (15 s/pc)
Planarity/parallelism after processing: ≤0.02mm
Surface roughness after processing: ≤0.5 Ra

Technical parameters

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Keywords: CNC grinding machine series, grinding and polishing machine series, intelligent equipment, metallurgical energy equipment
Functional parts