Question

true or false? select all the statements that are true based on what was presented in the copper manufacturing video glue is injected into copper powder a printed copper part is not yet as strong as a machined copper part. tiny pockets of air in the copper part increase performance. williams says the product will be ready for widespread use within five years.

Explanation:

To solve this, we analyze each statement based on typical copper manufacturing (3D printing or related) knowledge:

1. "Glue is injected into copper powder": In some additive manufacturing (like binder jetting for metals), a binder (similar to glue) is used with metal powder. But for copper, typical processes might differ—this is less likely true.
2. "A printed copper part is not yet as strong as a machined copper part": Additively manufactured (printed) metal parts often have lower density/strength initially (due to porosity, microstructure) than machined (forged/milled) parts. This is consistent with manufacturing limitations.
3. "Tiny pockets of air in the copper part increase performance": Porosity (air pockets) in metal parts usually reduces strength, conductivity, and performance. So this is false.
4. "Williams says the product will be ready for widespread use within five years": Without the video, we assume the video’s context—if the expert (Williams) stated a 5 - year timeline for scalability, this could be true, but more likely, the key true statement is the strength comparison.

• "Glue in copper powder" is atypical for copper manufacturing.
• Printed copper parts (additive) often have lower strength than machined (subtractive) parts due to porosity/microstructure.
• Air pockets (porosity) reduce, not increase, performance.
• The 5 - year claim depends on the video, but the strength statement is a standard manufacturing fact.

Answer:

The true statements (based on manufacturing principles) are:

• A printed copper part is not yet as strong as a machined copper part.

(If the video confirmed the 5 - year claim, include that too; but the strength statement is more universally true for metal AM vs. machining.)