When we make the metal parts from the metal or other material, the next step is the inculcation of the extra details to these components. This process of adding details helps to feel the component real and life like. This article will illustrate the manufacturing of bronze photo etched parts.
Moreover, this article will also demonstrate the process of photo etching to make these photo etched parts. Besides this, the types of the photo etching process and materials and chemicals that we use in the process, will be discussed in this article.
Photo etching is a process in which we fabricate the complex components of the metal having the fine details. The other names for the photo etching are chemical etching and metal etching. This process is very fine and controllable with the high precision. The photo etching process is actually a corrosion process carried in a controlled manner.
The basis of the photo etching process is the printing of the design on the photo resist part of the metal. The photo resist is the part of the metal that has the laminate connection with the component. After this process, we remove the areas of the photoresist that do not get the printing design. Therefore, the exposing of the bronze photo etched parts occurs that have got the etching or photo etching.
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The photo etched parts are the small metal parts that are result of the photo etching process. These photo etched parts come to existence from the thin sheet of the metal. The etching creates the etching of the metal or its part by very fine detailing process. This process helps to create the small parts of the design on the metal.
The process of etching the parts of the metal at home is an easy process to deal with. However, in this technological age, it is more cost effective to buy the etched parts of the metal. Generally, all the photo etched parts are different from each other. The reason is that all the bronze photo etched parts have the different design and material.
The photo etched parts vary in the shape, look and thickness. The appearance of these etched parts may have the shiny or dull look. These features of the etched parts depend upon the process of photo etching and the material used in the process.
Different materials have the capacity for their use in the process of photo etching. These materials are steel, brass and nickel.
We can also attach the photo etched parts to the frame. This frame has the attachment with the sheet that has the appearance like rubber. The bronze photo etched parts that have attachment with the rubber frame, are easy to manufacture and design. Moreover, they are also cheap for the manufacturing process.
These parts that are rubber backed are very easy to use and remove during the process. But these parts are also much expensive to use on the model. Due to this, most of the manufacturers fabricate the photo etched parts. However, some of them fabricate and manufacture the rubber backed photo etched parts.
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Photo etching is a great way to etch the metal parts with the fine details. In the commercial manufacturing of the bronze photo etched parts, the process of photography as well as chemical etching is helpful. However, we can make our own photo etched parts at home. This requires certain inexpensive chemicals and the use of a laser printer.
First of all, you need a CAD program for the purpose of dealing with artwork of the process. AutoCAD is the best option for this purpose. However, we can also use the software that use pixels. But these programs do not give the outstanding results.
A laser printer is also an essential requirement of this process. The laser printer helps to print the artwork on a coated sheet. This coated sheet has the general name of “Press N’ Peel Blue”. This process uses the toner and thus the quality of the process depends upon the type of the toner. Therefore, the inkjet printers are not usable in this process.
The next requirement in manufacturing bronze photo etched parts is the Press and Peel Blue. It is a specially coated sheet that has the composition of a mylar sheet. The particles of the toner stick to the dull blue part of this sheet. The conversion of the Press and Peel Blue to etched metal occurs. For this purpose, the use of heat and pressure is important.
An iron or laminator is another important requirement of the process. The side of the Press and Peel Blue having the artwork is present with that side down. After this, we can apply the heat or pressure using the iron or laminator in order to create the etched metal. In this process, the control of the temperature and pressure is a difficult process.
In the process of etching process, the most important etchant process is Ferris Chloride. However, this etchant is expensive etchant that has very efficient performance and functioning. There are many other etching chemicals that have are cheaper than Ferris chloride. These include Ammonium persulphate and sodium persulphate.
Both these chemicals have the clear solution. Moreover, they are cheaper than Ferris Chloride. The problem here is that they are difficult to obtain and get as compared to Ferris chloride. Therefore, we have to select the chemical for this process with precautions. We have to take in to account the factors and elements during manufacturing of bronze photo etched parts.
In addition to the chemicals for the etching process, there are other requirements too in the process.
These requirements are as follows:
The process of etching is generally of two types. It is:
In the wet etching, the material dissolves in the chemical solution when it becomes immersed in the solution. This technology is the simplest technology that has the vast use in the etching process. There is a chemical in the solution phase that dissolves the material. There is the requirement of a mask in this process of manufacturing bronze photo etched parts for the selective etching.
While in the dry etching, the material dissolves in the chemical solution and the etchant is in the vapor phase. This technology has three further kinds. These are reactive ion etching, sputter etching and vapor phase etching. The three types use the different types of the chemicals and dissolution methods.
