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Open Die Forging vs. Closed Die Forging

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Nimika Lope
Open Die Forging vs. Closed Die Forging
  • Closed die forging is one of the forging methods that produces a desired part in which dies move towards each other and covers the piece in whole or in part.
  • Closed die forging process begins with heated round bars, which is cut to the shape or size of the final forged part, then be placed in the bottom die. The impact of the top die on the billet drives it into the required forged shape. Steel Forgings from a few ounces to 60 lbs. can be made in this way.
  • Closed-die forging can produce an almost limitless variety of shapes in most alloys, like of steel, aluminum, titanium and other alloys. These forgings are regularly produced on hydraulic presses, mechanical presses, and hammers. Because metal flow is restricted by the die contours, this process can yield more complex shapes and closer tolerances than open-die forging processes. Most engineering metals and alloys can be forged through closed die forging technique. Those materials include carbon steel flanges and alloy steels, and stainless steel flanges, aluminum blocks and copper alloys, and certain titanium alloys.


Why Use Closed Die Forging? What are the Advantages?


Closed die forging is capable of producing both symmetrical and non-symmetrical parts. While the initial costs can be quite high, it is still the most cost-effective method for high volume production. The closed die process is commonly found in the agricultural, electronics, aerospace, automotive, commercial, manufacturing, semiconductor, construction, hardware, and food processing industries.

Advantages of closed die forging are:


  • Closed die forging process can forge parts in most metal alloys.
  • This kind of forging has low recurring costs for the different parts, making it one of the most economical methods to use.
  • Due to its economical advantages, this type of forging process is very popular in the automotive and tool industries.
  • In comparison to many other machined parts, closed die forgings have a 20 percent higher strength-to-weight ratio.
  • This forging process requires little to no machining. As a result, people are able to save significant time and money when using it on a project.
  • Closed die forgings of stainless steel, titanium, aluminum plates and other metals have the ability to create several different 3-D parts with a variety of shapes, sizes and weights.
  • Due to its unique flexibility, this type of forging process is one of the best processes for designs and shapes that are elaborate and complex.


With a collective experience of over 30 years, Metline Industries is a professional pipe fittings manufacturersteel pipe manufacturers and one-stop-shop supplier for steel piping system products, including steel plates, steel pipe and tube, forged flange and fittings, butt-welding pipe fittings, elbow, tee, reducer, stub end, gaskets, fasteners, valves, etc. in India.


Metline specialises in manufacturing welded and seamless pipesbuttweld fittings, flanges and forged fittings, such as carbon/stainless steel elbows, tees, reducers, caps, pipe bends, dish ends and pipe sleeve as per ASME/ASTM, DIN and other known specifications. These steel pipe fittings are widely used in nuclear power stations, power plants, shipbuilding, paper manufacturing, pharmaceutical plants, oil refineries, petrochemical plants, and natural gas pipeline projects. We are always focused on providing high-quality and high performance alloy steel fittings, carbon steel fittings, and stainless steel pipe fittings solutions for small fabrication projects and large size turnkey projects.


Our increasing list of customers includes domestic and international end user companies, international traders/distributors, as well as pipe fittings traders and suppliers based in India. Stainless steel elbows and stainless steel bends used in pipeline systems in various industries are available in a variety of shapes and sizes. Besides, we also can produce other non-standard size 100% X-Ray welded stainless steel pipe fittings as per technical drawings provided by our customers. One of our key strengths is to manufacture and supply high quality long radius elbows, double flanged pipes, piggable bends and large diameter fabricated pipes in stainless steel, carbon steel, alloy steel and nickel alloy grades.


We also run an operate one of the biggest stainless steel, aluminium and nickel alloys service center in India. We have in house slitting, cutting and machining facilities to offer custom size and custom made products to our customers across the globe. We are one of the leading steel pipe manufacturers and suppliers, stainless steel pipe manufacturersstainless steel pipesflange manufacturersstainless steel bar supplierssteel plate suppliersstainless steel plate suppliersseamless pipe manufacturerserw pipe manufacturersscrap steel buyers and flexible hose pipe manufacturers, stainless steel hose pipe in India.

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Nimika Lope
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