cold welding: meaning, definition, pronunciation and examples
Low (Technical)Formal/Technical
Quick answer
What does “cold welding” mean?
A solid-state welding process where two clean, flat metal surfaces bond together at room temperature without melting, when brought into intimate contact under pressure.
Audio
Pronunciation
Definition
Meaning and Definition
A solid-state welding process where two clean, flat metal surfaces bond together at room temperature without melting, when brought into intimate contact under pressure.
In a broader technical or metaphorical sense, it can refer to any spontaneous adhesion between clean, similar materials in a vacuum or inert environment where surface oxides are absent, or metaphorically to describe an instant, seamless connection between people or systems.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or spelling. The term is identical in both varieties.
Connotations
Purely technical; carries the same neutral, precise connotation.
Frequency
Equally low frequency and confined to technical/engineering contexts in both regions.
Grammar
How to Use “cold welding” in a Sentence
The [metal] underwent cold welding.Cold welding of [materials] can occur.To prevent cold welding between [components].Vocabulary
Collocations
Examples
Examples of “cold welding” in a Sentence
verb
British English
- In a vacuum, the aluminium components can cold-weld if the protective layers are scratched.
- The satellite's moving parts were treated to ensure they would not cold-weld in orbit.
American English
- The gold wires cold-welded under pressure in the experiment.
- Engineers design mechanisms to prevent parts from cold-welding in space.
adverb
British English
- The metals bonded almost cold-weldingly, without any heat input.
- (Rare usage)
American English
- The surfaces joined cold-weldingly under the immense pressure. (Highly technical and rare)
adjective
British English
- The cold-welding phenomenon is a significant consideration for spacecraft design.
- They observed a cold-welding effect on the freshly machined surfaces.
American English
- Cold-welding joints are often stronger than the base metal itself.
- The report detailed the cold-welding properties of the new alloy.
Usage
Meaning in Context
Business
Rare; might appear in technical proposals for aerospace or high-tech manufacturing.
Academic
Used in engineering, physics, and materials science papers discussing solid-state bonding.
Everyday
Extremely rare; would only be used by hobbyists or in specific technical explanations.
Technical
The primary context. Describes a specific phenomenon in spacecraft design, microelectronics, and metallurgy.
Vocabulary
Synonyms of “cold welding”
Strong
Neutral
Weak
Vocabulary
Antonyms of “cold welding”
Watch out
Common Mistakes When Using “cold welding”
- Using it to describe welding done outdoors in winter (that is still hot welding).
- Spelling as 'coldweld' or 'cold-weld' (the standard is two words).
FAQ
Frequently Asked Questions
No. It is a specific phenomenon or a specialised laboratory/industrial process, not a common workshop technique like arc welding.
Yes, but it is rare in everyday life because surface oxides and contaminants usually prevent it. It requires meticulously clean surfaces, often in a controlled environment.
Space technology (satellites, probes) is a major concern due to the high-vacuum environment. It is also used in microelectronics and some specialised metalworking.
When it occurs between perfectly clean, compatible metals, the bond can be as strong as the parent metal itself, because it forms a true metallic bond.
A solid-state welding process where two clean, flat metal surfaces bond together at room temperature without melting, when brought into intimate contact under pressure.
Cold welding is usually formal/technical in register.
Cold welding: in British English it is pronounced /ˌkəʊld ˈweldɪŋ/, and in American English it is pronounced /ˌkoʊld ˈweldɪŋ/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “The team worked so well together it was like cold welding – an instant, seamless bond.”
Learning
Memory Aids
Mnemonic
Think of two perfectly clean ice cubes (cold) pressed together in the freezer that fuse into one (weld). No heat needed.
Conceptual Metaphor
INSTANT AND SEAMLESS CONNECTION IS COLD WELDING.
Practice
Quiz
What is the defining characteristic of cold welding?