PROFILE DEVELOPMENT / 10B21
10B21 U-shaped
10B21 U-Shape: U-shaped sample record. For U-shaped cross-sections, attention must be paid simultaneously to the opening width, groove depth, sidewall thickness, and bottom thickness; a single external width cannot represent the full groove geometry.
Geometric Focus Points
Opening, groove depth, side wall thickness, and bottom thickness
Opening consistency, groove-bottom transitions, and bilateral contours
Confirm technical requirements based on the drawing
Cross-sectional features and review points
U-shaped cross-sections require simultaneous attention to opening width, groove depth, sidewall thickness, and bottom thickness; a single external width cannot represent the full groove geometry.
Drawings and measurement requirements
Recommend specifying slot opening and bottom width, groove depth datum, sidewall thickness location, and bottom fillet radius; if parallelism or symmetry is required, specify inspection methodology.
Delivery and subsequent processing
If the groove geometry is intended for subsequent mating or guidance, mating components and contact areas must be provided to evaluate opening direction, edge condition, and longitudinal requirements.
Documentation basis and scope of confirmation
Data originates from this case’s catalog and internal sample photographs; catalog dimensions are nominal values, and photographs do not substitute formal inspection reports. Material standards, mechanical properties, heat treatment, supply conditions, and acceptance criteria must be confirmed per project.
Photo recording
Development Q&A
For U-shaped wire, should the opening or the groove bottom be verified?
Both must be verified and interpreted together with groove depth, sidewall, and bottom thickness to understand the full cross-section; actual dimensions shall follow the approved drawing.
How is symmetry specified for U-shaped cross-sections?
First establish central datum and left-right correspondence, then agree upon required symmetry or parallelism checks—do not infer from sample photographs.
Related cross-sectional cases
Material data and technical communication
Technical requirements must include cross-sectional drawing and revision, critical tolerances, subsequent processing steps, delivery form, and inspection requirements.
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