Read the following passage about machining operations:
During manufacturing operations, metal cutting tools experience extreme heat due to continuous friction against the workpiece. This elevated temperature accelerates tool wear and can cause thermal deformation of the part. To manage this heat, machinists apply liquid coolant directly to the cutting zone, which rapidly dissipates heat away from the contact point. Furthermore, running a cutting tool at excessive speeds causes sheared metal chips to weld onto the tool edge, resulting in a rough surface finish on the completed part.
Based on the passage, match each operational cause with its directly stated effect.
- Continuous friction between the cutting tool and workpieceExtreme heat generation that accelerates tool wear
- Applying liquid coolant directly to the cutting zoneRapid dissipation of heat away from the contact point
- Operating the cutting tool at excessive speedsMetal chips welding onto the tool edge, creating a rough finish
Answer
Continuous friction between the tool and workpiece pairs with extreme heat generation that accelerates tool wear; applying liquid coolant directly to the cutting zone pairs with rapid dissipation of heat away from the contact point; operating the cutting tool at excessive speeds pairs with metal chips welding onto the tool edge, creating a rough finish.
Each cause is matched with its direct, explicitly stated consequence from the passage: friction causes extreme heat and tool wear, coolant application causes rapid heat dissipation, and excessive speed causes chips to weld and create a rough finish.
Step-by-Step Solution
Key Concept
Extracting explicitly stated cause-and-effect details from a technical reading passage.
Estimated Time:45s