Fusing - what is it? Fusing: master class, technique, price
Fusing - what is it? Fusing: master class, technique, price

Surely each of you paid attention to the bright glass compositions that adorn the window openings of ancient temples or modern restaurants. It is impossible to pass by them indifferently. Such beauty can be seen in the interior of apartments framed by mirrors, on glass partitions, picture frames, interior doors. Such decorative elements are called the mysterious word "fusing". What is this method of creating glass images, we will try to find out later in the article.

Fusing - what is it

A unique stained glass technique

Stained-glass windows are transparent drawings, patterns, pictures that are made from fragments or on a glass surface. When creating classic stained-glass windows, a metal profile is an obligatory element. Multi-colored pieces of glass are connected to each other with the help of thin broaches that hold the entire composition intact. The centuries-old history of stained glass art has given rise to many different ways of making original jewelry. Modern technologies for creating stained-glass windows are calculateddozens.

Glass melting method

Fusing - what is it? This is the name of one of the glass processing methods for stained glass. The name of the technique comes from the English fusing (heating, melting, sintering) and reflects the essence of the process. Under the influence of high temperatures, several glass elements are able to firmly connect to each other into an unusual multi-colored composition. Similar decorations were known to the ancient Egyptians as early as the 1st century BC. But over the years, this method of manufacturing was almost never used in stained glass art.

fusing master class

The fusing technique was developed and improved in the nineties of the last century. Then special furnaces for melting glass were created in Germany. In this country, the revived method is the most widely used.

Fusing technology: stages and features

The production process consists of several steps, each of which we will consider in detail.

  • Where to start. In accordance with the chosen technique, a glass blank is made. The final result directly depends on the thoroughness and accuracy of the preparatory work. Then glass fusing goes to the next stage. This is heat treatment.
  • Heating. The prepared semi-finished product is placed in a special oven, which is heated to the desired temperature. The glass gradually melts and acquires a red-orange hue. The softened pieces are first glued together and then merged into a single whole.
  • fusingwhat is this
  • Lingering. When the maximum specified temperature is reached, the glass product is kept for some time (2–4 hours). This is a very important stage that fusing goes through. What does this mean for the future product? Long exposure at certain thermal parameters ensures perfect smoothness and maximum flatness of the baked fragment.
  • Cooling. When the glass blank takes on the desired shape, the furnace is turned off. The product is cooled to room temperature gradually, without removing it from the oven.

Sintering Methods

Fusing - what is it, how does it happen? Glass processing technology by sintering is divided into three varieties:

  • Full fusing - absolute melting of glass under the influence of elevated temperatures (700–900 оС). With strong heating, the upper layers of the material under the weight of their own weight fall and dissolve in the lower ones.
  • Semi-fusing, or lapping sintering (500–550 оС) - partial melting with a slight change in shape. Separate elements are interconnected, while maintaining a three-dimensional surface.
  • Swelling is a change in the shape of glass under the influence of its own weight. At t 600–650 оС the material softens and takes the form of the surface on which it is located. The substrate is objects made of refractory materials (gypsum, clay).
  • fusing technique

Fusing techniques

The most popular among designers is planar sintering. Smooth monolithic product canact as a stained-glass window, decorative painting or original dishes (dish, tray). To create objects from fusing glass, you will need a base and a set of individual elements. As a substrate, ordinary or colored glass with a thickness of 3 to 5 mm is used.

In the manufacture of details of the future composition, various materials can be used: pieces of glass, frits, granules, etc. They are placed on a plane in accordance with the sketch of the drawing. To obtain elements of the desired size and shape, use a glass cutter and tongs.

glass fusing

The fusing-forming technique allows you to model three-dimensional products of various configurations. The desired result can be achieved in several ways:

  • comb - "combing" the surface of heated glass with a special tool;
  • engraving - additional decoration of individual elements of the image;
  • pate de ware - casting products using special molds;
  • painting - decoration with glass powder mixed with adhesive;
  • bending - creating curved shapes by reheating fused glass.

This is just a small list of varieties of fusing. In practice, there are a great many of them.

Details for decoration

Professional fusing master uses a large number of different glass-based materials to realize his creative ideas, among which the most common are:

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  • frit –small pieces of crushed glass;
  • noodles - thin and narrow strips;
  • chips, or confetti - rounded plates with a thickness of not more than 0.5 mm;
  • rods - glass rods with a diameter of about 15 mm;
  • stringers - threads with a thickness of 5 to 8 mm;
  • pebbles - drop-shaped particles of glass on a flat base;
  • foil - the thinnest aluminum sheets for fusing into the surface.

To get not only beautiful, but also durable products, you should take into account the compatibility of the materials used.

Glass sintering furnaces

Special equipment is used to obtain high temperatures. The furnace heating processes are controlled by a special unit. Here you can adjust the power level, set the step change in temperature and turn on the timer cycle. The built-in programmable thermal controller allows you to fully control the glass sintering process.

fusing technique

Fusing ovens have different capacities and sizes. The choice of the required type depends on the purpose and scope of work. Modern models are characterized by low inertia and reliable thermal insulation, which has several obvious advantages:

  • minimum thickness - reduces the overall weight of the structure and increases the internal space of the oven;
  • double layer - contributes to precise control of all processes;
  • low thermal conductivity - reduces power consumption, making it suitable for domestic use.

Heating elementsThe fusing furnaces are housed in quartz insulators, which prevent scale from getting on the glass and allow the heat energy to flow freely.

Product cost

Setting a price for a finished glass product is not easy, because it is not fixed. Many factors influence the final cost of fusing:

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  • size and thickness of the finished product;
  • number of colors and shades used;
  • quality of materials and their purchase price;
  • image complexity;
  • the need for installation of the finished structure and transportation.

One of the important components of the cost of the finished creation is the development of a sketch, according to which the fusing was created. The price also includes labor costs. One square meter of stained glass made using the fusing technique can cost from 30,000 rubles. The approximate lead time for such an order is one week.

Where to learn the art of fusing

The production technology of glass images by sintering seems to be a simple process. Even a minimal amount of knowledge will help you make some simple fusing yourself. You can get a master class on creating various products by studying a variety of literature and watching videos. But if you have the opportunity to attend a training lesson with an experienced specialist, then you should not miss it. In this case, you will not only be able to observe the entire scenario of an unusual and exciting process with your own eyes, but alsoactively participate in it.

fusing price

Having made a colorful picture or a luxurious dish with your own hands, you will feel the indescribable joy of creation. The teacher will tell you about all the subtleties and nuances of creative work, answer all questions related to the fusing technique. A live communication master class can give you much more than educational articles and video tutorials.

If the acquired knowledge will arouse in you the desire to seriously engage in fusing, then you can do it at home without resorting to the services of masters.

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