Definition

Noun: 1. A rotating shaft serving as an axis: In mechanical engineering, a mandril (also spelled "mandrel") is a cylindrical bar, spindle, or shaft used to support, shape, or hold a workpiece or tool in a machine such as a lathe or a milling machine. It serves as the central axis for rotation. 2. A core or form around which material is shaped: A mandril can also refer to a core or form, often tapered, used as a support around which materials like metal, glass, or resin are shaped, molded, or wound.

Usage Examples

• Noun:
  • The machinist mounted the metal tube on the mandril before turning it on the lathe.
  • To create the fiberglass tube, the resin-soaked fabric was wrapped around a steel mandril.

Advanced Usage

• "Expanding mandril": A type of mandril designed to expand within a workpiece to hold it securely from the inside.
  • The expanding mandril provided a perfect grip on the pipe's interior surface.
• "Lathe mandril": Specifically refers to a mandril used in a lathe.
  • He selected a lathe mandril of the correct diameter for the job.

Variants and Related Words

• Mandrel (n): The more common spelling variant of "mandril." Both words are used interchangeably.
  • The tool is also known as a mandrel.
• Arbor (n): A similar shaft or spindle, often used to support cutting tools.
  • The milling cutter was mounted on an arbor.

Synonyms

• Spindle: A rotating axis, especially in machinery.
• Shaft: A long, rotating rod used to transmit power or motion.
• Axle: A shaft on which a wheel rotates.
• Core: The central part around which something is formed.

Related Phrases (Technical Contexts)

• "To mount on a mandril": The action of placing a workpiece onto a mandril for machining.
  • The first step is to mount the ring on a mandril for polishing.
• "Mandril press": A type of press that uses a mandril in its operation.
  • The part was formed using a mandril press.

Noun

1. any of various rotating shafts that serve as axes for larger rotating parts