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Amazing metal carving techniques

Metal carving has numerous applications in various sectors, including the military, medical, aerospace, research, security and automotive industries, among others. The appearance of metal carving machine over came the difficulties of metal carving.Manufacturers use different metal carving techniques to create markings and engrave their products. Techniques may involve laser beams, dot pins, inkjet, or any other feasible process that leaves a mark on the metal without compromising its strength and performance. However, to achieve the best results, you need the right tools and methods. There are several engraving machines and techniques available for both expert and newbie metalworkers, so learning one shouldn’t be a daunting task. Nonetheless, if you need custom parts for specific projects, you can rely on experienced metal carving businesses to handle your needs. When reviewing amazing metal carving techniques, you should examine them under two main categories as follows:

  • Direct engraving

As with any other carving technique, you need to come up with a graphical design before anything else. During this process, you should draw engravings with a carving tool manually.  Tools such as burins and dry points, which sometimes refer to the engraving process, are quite handy. Some fantastic direct engraving techniques manufacturers use today includes:

  • The burin technique

As the name suggests, this engraving technique requires the use of a tool known as a burin. A burin is a stone-age tool with a sharp chisel-like tip that is used to accomplish various metal carvings. While it seems basic and easy to achieve, you need to have tremendous skills to handle the burin and use it to make engravings on any material. Your experience in metal carving also plays a significant role in your success.

  • Mezzotint method
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Unlike the burin method, this technique needs a tool known as a rocketer. Also, the level of know-how that is required to transfer your print to the metals is rather significant. As such, individuals without previous metal carving skills should consider leaving tasks that require the mezzotint method to more experienced metal carvers. Mezzotint technique is ideal when you want to accomplish black printing for darker tones.

  • Laser etching

This involves using a laser engraving machine to remove the lacquer oxidized layer from a material. It is ideal for processing metals and leaves a clearly visible marking. There are several laser engravers for metal, but all etching processes involve removing the coating in localized areas to create a permanent marking on the surface.

  • Etching

Compared to direct engraving, etching offers a more effective way to accomplish your carving needs. Nitric acid is the primary corroding agent that is used for engraving the desired graphics onto your metal, but you can also achieve the process with laser techniques. When using nitric acid to achieve the finish you want, make sure the parts that should remain unchanged are protected. Below are various techniques that can preserve and accomplish metal etching.

  • Hard varnish

The hard varnish technique is prominent in metals, especially copper during intaglio printing. Points are made on the plate to form the image leaving the copper exposed. After the image is complete, the plate is then inserted into a tray full of ferric chloride or nitric acid. The corrosive agents then bite into the parts where the varnish is removed. The longer the plate stays in the tray, the deeper the bites will form.

  • Soft varnish
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Also known as stipple engraving, the soft vanish technique enables you to draw designs directly through a fabric or paper onto the varnish. Following the acid bath, the parts where the biting occurred appears similar to that of a graphite pencil. This technique can produce an elegant finishing touch for textiles and other plant materials.

  • Aquatint

Among all the other techniques, this appears the easiest to follow and complete. It involves the use of rosin powder, placed as a single layer on top of the metal. After cooking the resin, it will melt and stick onto the predefined template. The biting process in aquatint results in joints with points instead of lines that have varying values.

  • Sugar-lift technique

What makes this craving technique worth trying out is the possibility it offers to draw on the metal directly. In this method, you can brush your design directly on the metal with a mixture of Indian ink and powdered sugar. You can also use an aquatint prepared for the acid bath instead of direct carving.

Conclusion

There are several other amazing ways to carve metals, see Heatsign for details. Whether you prefer traditional chipping or modern lasers and dot pins, metal carving techniques seek to achieve the same results. The carving method you choose will depend on the unique needs of your project. It is recommendable to find high-quality materials and engraving tools for the best results. Lasers generally offer accuracy, efficiency and cost-effectiveness. Nonetheless, this does not mean laser engravers will meet everyone’s needs. It is essential to find tools and techniques that suit what you want to achieve.

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