Chrome is no stranger in the world of CNC (Computer Numerical Control) machining. Often applied as a finish on various types of lightweight metal assemblies and parts, chrome imparts durability, resistance to corrosion and a polished aesthetic appeal that enhances the overall value of the product.
However, there are occasions when we may need to remove chrome from metal – perhaps due to wear or simply for refurbishment purposes. Here is an informative guide on how you can efficiently and effectively do so employing at-home techniques and industrial-level methods.
Domestic Methods: How You Can Do it At Home
One simple way to begin removing chrome from metal is by using ordinary household supplies. This technique involves creating an abrasive material using aluminium foil and soda water. Firstly, soak the piece of aluminium foil in soda water. Then gently scrub away at the chrome surface. The mixture triggers a chemical reaction that helps dissolve chrome off the metal underneath gradually. However, note that this method might not be suitable if your item has intricate detail as excessive scrubbing could deteriorate the overall quality.
Another home-friendly method involves using vinegar. After donning proper protective gear like gloves and goggles, pour white vinegar into a container large enough to fully submerge the object bearing the chrome finish. Allow soaking overnight. Afterwards, gently scrub off the now-loosened chrome with a soft-bristled brush.
Industrial Processes
In a more professional setting such as a CNC machine shop, stronger chemicals and commercial-grade equipment are utilized for stripping chrome from metals.
Sandblasting is one process used particularly for larger pieces. Using software-guided precision, pressurized grit such as sand or glass beads blow against the metal, wearing down the chrome layer bit by bit until the raw lightweight metal beneath surfaces.
There’s also the option of employing acid solutions. A popular choice is hydrochloric acid combined with other ingredients, forming ‘Muriatic Acid.’ In a well-ventilated area, the item should be soaked until chrome dissolves away.
It’s essential to rinse thoroughly and neutralize any remaining acid with baking soda to halt its corrosive action on raw metal.
CNC Machining: Key Role in Helping Metal Restoration
CNC machining can help refurbish materials that have had their chrome layer removed. Using programmed sequences based on CAD (Computer Aided Design) data files, CNC machines enable high precision work – cutting, shaping, and finishing lightweight metals like aluminum or magnesium into the desired part or assembly.
These processes leverage drilling, milling, turning actions among others to deliver consistent, complex contours and dimensions as per requirement. The metal product can then be polished, painted, anodized, or provided another type of finish for enhanced appeal and longevity.
The ability to effectively remove chrome from metal opens up new opportunities in terms of recycling and redeployment of resources. With technology advancements, what was once ‘impossible’ is now easily achievable whether you’re trying your hand at home, or if it’s being done professionally within industry setups using advanced CNC machinery. For this reason, always take care to follow guidelines regarding safety and environmental sustainability while venturing into such tasks related to dealing with heavy metals, especially when chemicals or other hazardous substances are involved.
