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In precision machining, size consistency is everything. Even if your first part comes out perfect, the fifth part being slightly smaller is a clear sign of size drift, an issue that can compromise production quality.

Size drift usually occurs due to overheating, unstable pulse output, or less-than-optimal mechanical setup. For companies relying on wire EDM technology, maintaining consistent part dimensions over long production runs is a key measure of a machine’s reliability.

Top wire EDM manufacturers in China address this challenge through several engineering strategies. High-quality machines use precise pulse control to ensure each spark behaves consistently. Stable servo drives and rigid machine structures also play a vital role in keeping every part within tight tolerances.