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KEMING share information, tips and things we’ve learned from our years in the Metal Casting and CNC Machining industry.

Can cast iron be sanded?

Cast iron sanding is a popular surface treatment used to smooth rough cast iron and remove surface rust, though experts disagree on whether it is always necessary. It effectively eliminates rust

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What is investment mold?

In investment casting, investment molds are used to precisely shape metal into parts. These molds are made by engineers covering a wax model with a ceramic layer. Factories use this method

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How much does CNC routing service cost?

According to 2026 global manufacturing industry surveys, CNC routing service hourly rates typically stand between $35 and $150, with the final quote determined by project complexity, machine setup, workpiece material, part dimensions

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What is the standard precision of machining?

Machining precision refers to the consistency of manufactured parts relative to the designed nominal dimension. Standardized precision and tolerance systems are core to modern mechanical processing, which improve product reliability, reduce

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What products are manufactured using sand casting?

As a mature expendable mold casting technology widely adopted across foundry industries, sand casting produces diversified components covering multiple industrial fields. Automotive manufacturers commonly produce engine blocks and suspension brackets via this

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What are the four types of metal casting?

The four mainstream metal casting processes are sand casting, investment casting, die casting, and evaporative casting. Each process is applied to different industrial production scenarios. Sand casting is widely adopted for

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