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Related Concept Videos

Brick Cutting Techniques01:08

Brick Cutting Techniques

912
Brick-cutting techniques involve various tools and methods to shape bricks for construction. A mason's hammer with a chisel-pointed end is used for basic shaping through sharp, precise strikes. For more complex shapes requiring higher precision, a power saw with a water-cooled diamond blade is used.
Cut bricks are categorized by size. Bricks cut to half their original length are called half-bats, while those cut to three-fourths their length are known as three-fourth bats.
Special types of...
912

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A Method for Studying the Temperature Dependence of Dynamic Fracture and Fragmentation
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Understanding the Processing Quality Problem for Cutting Ceramic Materials Using the Thermal-Controlled Fracture

Xiaoliang Cheng1, Zhenzhen Cui2, Junwen Chen1

  • 1School of Mechanical Engineering, Hubei University of Automotive Technology, Shiyan 442002, China.

Micromachines
|August 29, 2024
PubMed
Summary

Surface heating in thermal-controlled fracture cutting of advanced ceramics leads to poor quality and inconsistent fracture trajectories. This study reveals the underlying mechanism, offering insights for improved high-quality ceramic processing.

Keywords:
ceramic materialsfracture qualityprocessing problemsimulationsurface heating modethermal-controlled fracture methodtrajectory deviationuneven distribution

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Area of Science:

  • Materials Science
  • Manufacturing Engineering

Background:

  • Thermal-controlled fracture is crucial for high-quality advanced ceramic cutting.
  • Current surface heating methods yield processing quality below industrial standards.

Purpose of the Study:

  • To investigate the mechanism behind processing quality issues in surface heating mode.
  • To understand trajectory deviation and uneven fracture quality in ceramic cutting.

Main Methods:

  • Experimental cutting of ceramics using single-surface heating.
  • Development of a cutting model for thermal stress and crack propagation simulation.
  • Comparison of single-surface and dual-surface heating modes.

Main Results:

  • Single-surface heating resulted in inconsistent upper and lower surface fracture trajectories.
  • Fracture quality was significantly worse compared to dual-surface heating.
  • Simulation results aligned with experiments, revealing stress distribution and crack propagation behaviors.

Conclusions:

  • The mechanism for trajectory deviation and uneven fracture quality in surface heating mode was elucidated.
  • This research provides foundational understanding for innovating advanced ceramic cutting techniques.