17839680. SYSTEM AND METHOD OF MAKING A CAST STEEL ALLOY CRANKSHAFT HAVING LOW POROSITY simplified abstract (GM Global Technology Operations LLC)

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SYSTEM AND METHOD OF MAKING A CAST STEEL ALLOY CRANKSHAFT HAVING LOW POROSITY

Organization Name

GM Global Technology Operations LLC

Inventor(s)

Liang Wang of Rochester Hills MI (US)

Qigui Wang of Rochester Hills MI (US)

Jianghuai Yang of Rochester Hills MI (US)

Kiran Mistry of Farmington Hills MI (US)

Oliver Patrick Jordan of Waterford MI (US)

SYSTEM AND METHOD OF MAKING A CAST STEEL ALLOY CRANKSHAFT HAVING LOW POROSITY - A simplified explanation of the abstract

This abstract first appeared for US patent application 17839680 titled 'SYSTEM AND METHOD OF MAKING A CAST STEEL ALLOY CRANKSHAFT HAVING LOW POROSITY

Simplified Explanation

The abstract describes a method for making a cast steel alloy crankshaft for an internal combustion engine. The method involves using a mold with cavities to form the crankshaft and melting a metallic material at a high temperature to create a molten material. The molten material is then fed into the mold at a specific angle and cooled with chill members to solidify it into the desired dimensions of the crankshaft. Finally, the solidified material is separated from the mold to create the cast steel alloy crankshaft.

  • The method involves using a mold with cavities to form the crankshaft.
  • A first metallic material is melted at a high temperature to create a molten material.
  • The molten material is fed into the mold at a specific angle.
  • The molten material is cooled with chill members to solidify it into the desired dimensions of the crankshaft.
  • The solidified material is separated from the mold to create the cast steel alloy crankshaft.

Potential Applications

  • Manufacturing of cast steel alloy crankshafts for internal combustion engines.

Problems Solved

  • Provides a method for efficiently and accurately manufacturing cast steel alloy crankshafts.
  • Allows for the production of crankshafts with precise dimensions.

Benefits

  • Improved efficiency in the manufacturing process.
  • Enhanced accuracy and precision in creating cast steel alloy crankshafts.


Original Abstract Submitted

Systems and methods of making a cast steel alloy crankshaft for an internal combustion engine are provided. The method comprises providing a mold of the crankshaft. The mold has cavities to form the crankshaft. The method further comprises melting a first metallic material at between 1400 degrees Celsius (° C.) and 1600° C. to define a molten metallic material. In addition, the method further comprises feeding the molten metallic material at a riser connection angle of between 30° and 75° in the cavities of the negative sand cast mold. The method further comprises cooling the molten metallic material at a solidification time of between 5 seconds (sec) and 20 sec in the negative sand cast mold with at least one chill member to define a solidified metallic material having dimensions of the cast steel alloy crankshaft. Furthermore, the method comprises separating the solidified metallic material from the negative sand cast mold to define the cast steel alloy crankshaft.

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