1 / 20

Forging Metals

Forging is the method in which metal is first heated and then beaten to the expected shape and size.<br>Forging, as technique, exists to allow the consistent delivery of quality, which would otherwise not be achievable in manufacturing.<br>For more info: https://www.patriotforge.com/materials/stainless-high-temperature-alloys/

Phoenixfly
Download Presentation

Forging Metals

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. FORGING METALS

  2. What is Forging? What is forgeability of metals? Forging Methods Forging Raw Materials Forging of metals

  3. WHAT IS FORGING? Forging is a manufacturing process It involves the shaping of a metal through hammering, pressing, or rolling.

  4. THE STRONGEST STEEL IS FORGED BY THE FIRES OF HELL. IT IS POUNDED AND STRUCK REPEATEDLY BEFORE IT’S PLUNGED BACK INTO THE MOLTEN FIRE. THE FIRE GIVES IT POWER AND FLEXIBILITY, AND THE BLOWS GIVE IT STRENGTH. SHERRILYN KENYON

  5. MECHANICAL PROPERTIES Forging The forging process can produce parts with superb mechanical properties with minimum waste. It gives it higher fatigue resistance and strength.

  6. WHAT'S FORGEABILITY OF METALS It is the legitimate process of softening the metal with extreme heat, so that it's malleable. It is one of the oldest technologies known to man, the most important development in eons of civilizations and history.

  7. HOW DO METALS DIFFER? Highly reactive Eg.:Potassium Transition metals Eg.: Iron, Nickel, Copper Pure and Nonreactive Eg.: Gold, Silver Completely non-reactive Eg.: Gold & Platinum Not all metals are created equal.

  8. MOLECULAR STRUCTURE WHAT MAKES A METAL FORGEABLE? At extremely high heat, some metals either melt or the molecular structure changes to the point that it's not functional. A soft metal is more forgeable than the harder ones. The molecular structure of a given metal is the determining factor for overall forgeability.

  9. Drop forging Roll forging Upset Forging Press forging Drop forging derives its name from the process of dropping a hammer onto the metal to mold it into the shape of the die. The die refers to the surfaces that come into contact with the metal. Roll forging consists of two cylindrical or semi-cylindrical horizontal rolls that deform a round or flat bar stock. This works to reduce its thickness and increase its length. Upset forging is a manufacturing process that increases the diameter of the metal by compressing its length. Uses a slow, continuous pressure or force, instead of the impact used in drop-hammer forging. The slower ram travel means that the deformation reaches deeper, so that the entire volume of the metal is uniformly affected. FORGING METHODS

  10. OPEN-DIE FORGING OPEN-DIE FORGING CLOSED-DIE FORGING CLOSED-DIE FORGING Drop Forging Open-die forging is suitable for simple and large parts, as well as customized metal components. Closed-die forging is also known as impression-die forging. Produces parts up to 25 tons, and is economic for heavy production Open-die forging is also known as smith forging.

  11. Roll forging Produces little to no material waste Creates a favorable grain structure in the metal Reduces the cross-sectional area of the metalProduces taper ends

  12. Press forging Advantages Economic for heavy production, great accuracy Speed, pressure, and travel of the die are automatically controlled, process is automated Capacity of presses range from 500–9000 tons

  13. Upset Forging Crank presses, a special high-speed machine, are used in upset forging processes. High production rate Process Automation Little waste production Advantages

  14. STAINLESS STEEL & HIGH TEMPERATURE ALLOYS CARBON LOW ALLOY Forging Raw Materials Carbon steels are used in a wide variety of products and applications in many industries. Low alloy steels generally offer improved mechanical properties when compared to carbon steels. Stainless steels contain a minimum of 10.5% chromium by mass, creates corrosion resistance

  15. STAGE2 STAGE4 STAGE 1 STAGE 3 A Look At The Steel Forging Process Although the steel has been softened, it still requires a lot of pressure or force to shape it, drop forging method is used. The metal is reheated to create new smaller and stronger crystals, then soaked in a water and chemical bath. This strengthens and stabilizes the steel. Steel is Hot Forged. Tons of scrap iron, are melted by giant furnaces reaching up to 3,000 degrees . The hot round of metal is then rolled, pressed, and/or hammered repeatedly into a thinner, flatter ring by machinery. Forged steel is incredibly strong and reliable.

  16. Properties of Stainless Steel Forgings Stainless steel forgings are composed of a ferrous alloy characterized by a “stainless” quality brought about by its protective oxide layer that helps the material resist corrosion. Depending on the grade selected, stainless steel forgings resist crevice corrosion, stress cracking, pitting, heat deformation. There are four main types of stainless steel – duplex, austenitic, martensitic, and ferritic.

  17. Forged parts had a 26% higher tensile strength. Forged parts have a 37% higher fatigue strength. Cast iron only has 66% of the yield strength of forged steel. The forged parts had a 58% reduction in area when pulled to failure.

  18. THANK YOU!

More Related