If there is a stop hole(Upper picture) in the machined parts such as shafts and valves to be plated, it is difficult for the plating solution to distribute evenly and quality problems are likely to occur.
If it is possible, instead of stop holes to provide through holes(Bottom picture) or plating solution drain holes that allows plating solution to drain out could prevent quality problems caused by plating.
We, E&H Precision, Asia's Largest CNC Machining Metal Lathe Turned Parts Manufacturer has various kind of plating and coating partner near our factories in Chonburi, Thailand and Rajasthan, India.
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