I am a mechanical design engineer with 65,438+00 years of mechanical design experience. As far as I know, there is no economical and simple way to deal with it. If you want to process it like this, there are still methods: 65,438+0, using special steel ball processing equipment, forging the blank first, then polishing it, etc. 2. Multi-axis machining center, twice clamping, high machining accuracy. I think you are an amateur, so the first two methods are not applicable to you. Using layman's method, a rough machining, first cut into 20x 10x 10 squares with a grinder, and then slowly ground out by hand.
But I want to tell you that if you want to use 10mm steel balls (steel balls), they are available in the market. Materials are chrome-plated carbon steel, stainless steel and plastic.