MMC & LMC
Next to the dimensions, label the Maximum Material Condition (MMC) and Least Material Condition (LMC) of the five features of size shown in the incomplete drawing.
Expand Hint
LMC, or Least Material Condition, is the version of a feature that contains the least amount of material within the called out size limits.
Hint 2
MMC, or Maximum Material Conditioning, is the version of a feature with the max amount of allowed material within a specified tolerance range.
LMC, or Least Material Condition, is the version of a feature that contains the least amount of material (typically the largest hole or smallest pin) within the called out size limits. MMC, or Maximum Material Conditioning, is the version of a feature with the max amount of allowed material within a specified tolerance range. This typically translates to the smallest hole or largest pin. Thus,
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Similar Problems from FE Sub Section: Definitions used in ASME Y14.5
092. MMC vs LMC
215. Positional Tolerance
402. GTOL
404. Feature Control Frame
425. A Hole’s Virtual Size
426. A Pin’s Virtual Size
427. MMC Hole’s Virtual Size
428. MMC Pin’s Virtual Size
438. Accept or Reject?
Similar Problems from FE Section: Geometric Dimensioning and Tolerancing (GD&T)
053. GD&T
072. Tolerance Analysis
092. MMC vs LMC
215. Positional Tolerance
402. GTOL
404. Feature Control Frame
409. GDT Symbols
411. GDT Rule #1
414. GTOL Rule #1
415. Geometric Symbols
417. ASME Y14.5 Symbols
421. RFS Boundaries
422. LMC Boundaries
423. MMC Boundaries
425. A Hole’s Virtual Size
426. A Pin’s Virtual Size
427. MMC Hole’s Virtual Size
428. MMC Pin’s Virtual Size
438. Accept or Reject?