Prototyping and Testing Flashcards
6 cards from real 3D Product practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Prototyping and Testing flashcards as text
What is 'ASTM D638' and why is it referenced in product design material selection?
Answer: The standard test method for tensile properties of plastics, used to compare material strength data on datasheets
ASTM D638 defines the procedure for measuring tensile strength, elongation, and modulus of plastic materials — ensuring datasheet values are comparable across suppliers.
What is 'thermal cycling testing' used to evaluate in product design validation?
Answer: How a product withstands repeated temperature changes, testing for material fatigue, seal failure, and joint cracking
Thermal cycling exposes products to repeated alternating hot and cold temperatures to accelerate fatigue, delamination, and seal failures caused by differential thermal expansion.
What is 'golden sample' or 'golden master' in manufacturing and quality control?
Answer: An approved reference product sample against which all production units are compared for visual and dimensional quality
A golden sample is a physically approved, boundary-limit product that manufacturing and quality teams use as a visual and tactile standard for accepting or rejecting production output.
What is 'salt spray testing' (ASTM B117) used for in product design validation?
Answer: Evaluating the corrosion resistance of metal surfaces and coatings by exposure to a saline fog environment
Salt spray testing exposes parts to a continuous saline mist in a controlled chamber to accelerate corrosion, evaluating how long surface treatments protect the base material.
What is 'design validation' versus 'design verification' in a product development quality system?
Answer: Verification confirms the design meets specifications; validation confirms the product meets user needs in actual use
Verification tests that design outputs meet design inputs (specs/requirements); validation confirms through user testing that the final product performs its intended use for end users.
What is 'first article inspection' (FAI) in product manufacturing?
Answer: A comprehensive dimensional and functional inspection of the first production parts against all engineering drawing requirements
FAI (AS9102 in aerospace) is a formal, documented inspection measuring every drawing dimension on first-off production parts to verify the manufacturing process is in control.