Trong l\u0129nh v\u1ef1c h\u1ec7 th\u1ed1ng li\u00ean k\u1ebft c\u01a1 kh\u00ed, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1edbi c\u00e1c lo\u1ea1i \u0111inh t\u00e1n \u00e9p nh\u01b0 \u0111ai \u1ed1c v\u00e0 v\u00edt \u0111inh t\u00e1n, th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a \u201ck\u00edch th\u01b0\u1edbc l\u1ed7 t\u1ed1i \u0111a trong c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c g\u1eafn\u201d l\u00e0 m\u1ed9t th\u00f4ng s\u1ed1 quan tr\u1ecdng. Thu\u1eadt ng\u1eef n\u00e0y, th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u l\u00e0 \u201cMax Hole in Attach Parts\u201d (L\u1ed7 t\u1ed1i \u0111a trong c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c g\u1eafn), \u0111\u1ec1 c\u1eadp \u0111\u1ebfn \u0111\u01b0\u1eddng k\u00ednh l\u1edbn nh\u1ea5t cho ph\u00e9p c\u1ee7a l\u1ed7 trong b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o \u0111inh t\u00e1n. N\u00f3 \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ea5u tr\u00fac b\u1eb1ng c\u00e1ch gi\u1ea3m thi\u1ec3u nguy c\u01a1 b\u1ed9 ph\u1eadn li\u00ean k\u1ebft b\u1ecb tu\u1ed9t ra d\u01b0\u1edbi t\u1ea3i tr\u1ecdng. H\u01b0\u1edbng d\u1eabn n\u00e0y cung c\u1ea5p m\u1ed9t gi\u1ea3i th\u00edch to\u00e0n di\u1ec7n, d\u1ef1a tr\u00ean c\u00e1c th\u1ef1c ti\u1ec5n v\u00e0 ti\u00eau chu\u1ea9n \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp trong ng\u00e0nh, \u0111\u1ec3 gi\u00fap c\u00e1c k\u1ef9 s\u01b0 v\u00e0 nh\u00e0 thi\u1ebft k\u1ebf \u00e1p d\u1ee5ng c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt n\u00e0y m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 trong c\u00e1c quy tr\u00ecnh l\u1eafp r\u00e1p.<\/p>\n
\u0110\u1ec3 cung c\u1ea5p s\u1ef1 hi\u1ec3u bi\u1ebft c\u00f3 h\u1ec7 th\u1ed1ng v\u1ec1 k\u00edch th\u01b0\u1edbc l\u1ed7 t\u1ed1i \u0111a trong c\u00e1c b\u1ed9 ph\u1eadn g\u1eafn k\u1ebft, b\u00e0i vi\u1ebft n\u00e0y tu\u00e2n theo m\u1ed9t b\u1ed1 c\u1ee5c logic. Khung c\u1ea5u tr\u00fac n\u00e0y \u0111\u1ea3m b\u1ea3o s\u1ef1 r\u00f5 r\u00e0ng v\u00e0 chi\u1ec1u s\u00e2u, bao g\u1ed3m c\u00e1c \u0111\u1ecbnh ngh\u0129a, \u00fd ngh\u0129a, v\u00ed d\u1ee5 v\u00e0 h\u01b0\u1edbng d\u1eabn th\u1ef1c ti\u1ec5n.<\/p>\n
\u201cK\u00edch th\u01b0\u1edbc l\u1ed7 t\u1ed1i \u0111a trong c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c g\u1eafn\u201d l\u00e0 m\u1ed9t th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt quan tr\u1ecdng \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong b\u1ea3ng d\u1eef li\u1ec7u c\u1ee7a c\u00e1c lo\u1ea1i \u1ed1c v\u00edt t\u00e1n \u0111inh, ch\u1eb3ng h\u1ea1n nh\u01b0 \u1ed1c v\u00edt v\u00e0 \u0111ai \u1ed1c t\u00e1n \u0111inh. N\u00f3 x\u00e1c \u0111\u1ecbnh gi\u1edbi h\u1ea1n tr\u00ean cho \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a l\u1ed7 trong b\u1ed9 ph\u1eadn gh\u00e9p n\u1ed1i (b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c g\u1eafn) s\u1ebd \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh v\u00e0o \u0111inh t\u00e1n \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t trong v\u1eadt li\u1ec7u n\u1ec1n, th\u01b0\u1eddng l\u00e0 t\u1ea5m kim lo\u1ea1i. K\u00edch th\u01b0\u1edbc n\u00e0y r\u1ea5t quan tr\u1ecdng v\u00ec n\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn s\u1ef1 ph\u00e2n b\u1ed1 t\u1ea3i tr\u1ecdng v\u00e0 \u0111\u1ed9 b\u1ec1n gi\u1eef c\u1ee7a c\u1ee5m \u1ed1c v\u00edt.<\/p>\n
V\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt, khi l\u1eafp \u0111\u1eb7t m\u1ed9t chi ti\u1ebft gh\u00e9p n\u1ed1i b\u1eb1ng \u0111inh t\u00e1n, ch\u1eb3ng h\u1ea1n nh\u01b0 v\u00edt \u00e9p, n\u00f3 \u0111\u01b0\u1ee3c \u00e9p ch\u1eb7t v\u00e0o v\u1eadt li\u1ec7u n\u1ec1n, t\u1ea1o th\u00e0nh m\u1ed9t \u0111\u1ea7u ch\u1eafc ch\u1eafn nh\u00f4 ra ho\u1eb7c n\u1eb1m ph\u1eb3ng. Chi ti\u1ebft \u0111\u01b0\u1ee3c g\u1eafn k\u00e8m, c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t t\u1ea5m ho\u1eb7c b\u1ed9 ph\u1eadn kh\u00e1c, sau \u0111\u00f3 \u0111\u01b0\u1ee3c b\u1eaft v\u00edt v\u00e0o \u0111inh t\u00e1n n\u00e0y. L\u1ed7 tr\u00ean chi ti\u1ebft \u0111\u01b0\u1ee3c g\u1eafn k\u00e8m kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 k\u00edch th\u01b0\u1edbc t\u1ed1i \u0111a quy \u0111\u1ecbnh \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ea7u c\u1ee7a chi ti\u1ebft gh\u00e9p n\u1ed1i ch\u1ed3ng l\u00ean nhau hi\u1ec7u qu\u1ea3 v\u00e0 ch\u1ecbu \u0111\u01b0\u1ee3c t\u1ea3i tr\u1ecdng m\u00e0 kh\u00f4ng b\u1ecb tr\u01b0\u1ee3t. V\u1ec1 m\u1eb7t tr\u1ef1c quan, \u0111i\u1ec1u n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c minh h\u1ecda trong c\u00e1c s\u01a1 \u0111\u1ed3 k\u1ef9 thu\u1eadt, trong \u0111\u00f3 \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u nh\u01b0 m\u1ed9t r\u00e0ng bu\u1ed9c so v\u1edbi \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i c\u1ee7a \u0111\u1ea7u \u0111inh t\u00e1n.<\/p>\n
V\u00ed d\u1ee5, trong c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt h\u1ec7 m\u00e9t ti\u00eau chu\u1ea9n, gi\u00e1 tr\u1ecb n\u00e0y \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1eb1ng milim\u00e9t v\u00e0 \u0111\u01b0\u1ee3c suy ra t\u1eeb c\u00e1c th\u1eed nghi\u1ec7m th\u1ef1c nghi\u1ec7m v\u00e0 ph\u00e2n t\u00edch ph\u1ea7n t\u1eed h\u1eefu h\u1ea1n (FEA) \u0111\u1ec3 t\u00ednh \u0111\u1ebfn c\u00e1c \u0111\u1eb7c t\u00ednh v\u1eadt li\u1ec7u, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed9 b\u1ec1n c\u1eaft v\u00e0 m\u00f4 \u0111un k\u00e9o. V\u01b0\u1ee3t qu\u00e1 k\u00edch th\u01b0\u1edbc n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn s\u1ef1 t\u1eadp trung \u1ee9ng su\u1ea5t kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u, c\u00f3 kh\u1ea3 n\u0103ng g\u00e2y ra h\u1ecfng h\u00f3c s\u1edbm d\u01b0\u1edbi t\u1ea3i tr\u1ecdng tr\u1ee5c ho\u1eb7c t\u1ea3i tr\u1ecdng xo\u1eafn. \u200b\u200bKh\u00e1i ni\u1ec7m n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n trong thi\u1ebft k\u1ebf c\u01a1 kh\u00ed, n\u01a1i hi\u1ec7u qu\u1ea3 c\u1ee7a m\u1ed1i n\u1ed1i \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a b\u1eb1ng c\u00e1ch c\u00e2n b\u1eb1ng khe h\u1edf v\u00e0 \u0111\u1ed9 kh\u00edt.<\/p>\n
M\u1ee5c \u0111\u00edch ch\u00ednh c\u1ee7a vi\u1ec7c quy \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc l\u1ed7 t\u1ed1i \u0111a trong c\u00e1c chi ti\u1ebft g\u1eafn k\u1ebft l\u00e0 \u0111\u1ec3 ng\u0103n ng\u1eeba nguy c\u01a1 bu l\u00f4ng b\u1ecb tu\u1ed9t kh\u1ecfi v\u1eadt li\u1ec7u n\u1ec1n. Trong m\u1ed9t thi\u1ebft k\u1ebf l\u1eafp r\u00e1p \u0111\u00fang c\u00e1ch, v\u1eadt li\u1ec7u n\u1ec1n \u0111\u00f3ng vai tr\u00f2 l\u00e0 l\u1edbp trung gian, ph\u00e2n t\u00e1n l\u1ef1c k\u00e9o tr\u00ean m\u1ed9t di\u1ec7n t\u00edch r\u1ed9ng h\u01a1n, t\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00e1ch v\u00f2ng \u0111\u1ec7m ph\u00e2n t\u00e1n t\u1ea3i tr\u1ecdng trong c\u00e1c m\u1ed1i n\u1ed1i bu l\u00f4ng. N\u1ebfu l\u1ed7 trong chi ti\u1ebft g\u1eafn k\u1ebft qu\u00e1 l\u1edbn, to\u00e0n b\u1ed9 t\u1ea3i tr\u1ecdng k\u00e9o s\u1ebd t\u1eadp trung v\u00e0o v\u00e0nh m\u1ecfng c\u1ee7a v\u1eadt li\u1ec7u xung quanh \u0111\u1ea7u \u0111inh t\u00e1n trong t\u1ea5m n\u1ec1n, l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng bi\u1ebfn d\u1ea1ng ho\u1eb7c g\u00e3y do l\u1ef1c c\u1eaft.<\/p>\n
Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong c\u00e1c \u1ee9ng d\u1ee5ng li\u00ean quan \u0111\u1ebfn t\u1ea3i tr\u1ecdng \u0111\u1ed9ng, rung \u0111\u1ed9ng ho\u1eb7c chuy\u1ec3n \u0111\u1ed9ng ngang, n\u01a1i m\u00e0 chi ti\u1ebft l\u1eafp gh\u00e9p c\u00f3 th\u1ec3 b\u1ecb l\u1eafc l\u01b0 ho\u1eb7c chao \u0111\u1ea3o. Nh\u1eefng \u0111i\u1ec1u ki\u1ec7n nh\u01b0 v\u1eady c\u00f3 th\u1ec3 l\u00e0m gia t\u0103ng \u1ee9ng su\u1ea5t t\u1ea1i v\u1ecb tr\u00ed ti\u1ebfp x\u00fac, d\u1eabn \u0111\u1ebfn n\u1ee9t do m\u1ecfi ho\u1eb7c bung ho\u00e0n to\u00e0n. B\u1eb1ng c\u00e1ch gi\u1edbi h\u1ea1n k\u00edch th\u01b0\u1edbc l\u1ed7, c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf \u0111\u1ea3m b\u1ea3o r\u1eb1ng l\u1ed7 c\u1ee7a chi ti\u1ebft \u0111\u01b0\u1ee3c g\u1eafn nh\u1ecf h\u01a1n \u0111\u01b0\u1eddng k\u00ednh hi\u1ec7u d\u1ee5ng c\u1ee7a \u0111\u1ea7u \u0111inh t\u00e1n, t\u1ea1o ra s\u1ef1 kh\u00f3a c\u01a1 h\u1ecdc ch\u1eafc ch\u1eafn gi\u00fap t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n t\u1ed5ng th\u1ec3 c\u1ee7a m\u1ed1i n\u1ed1i.<\/p>\n
T\u1eeb g\u00f3c \u0111\u1ed9 khoa h\u1ecdc v\u1eadt li\u1ec7u, th\u00f4ng s\u1ed1 n\u00e0y th\u1ec3 hi\u1ec7n \u0111\u1ed9 d\u1ebbo v\u00e0 gi\u1edbi h\u1ea1n ch\u1ea3y c\u1ee7a v\u1eadt li\u1ec7u c\u01a1 b\u1ea3n. V\u00ed d\u1ee5, \u0111\u1ed1i v\u1edbi nh\u00f4m ho\u1eb7c t\u1ea5m th\u00e9p m\u1ecfng, vi\u1ec7c v\u01b0\u1ee3t qu\u00e1 k\u00edch th\u01b0\u1edbc l\u1ed7 t\u1ed1i \u0111a c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng bi\u1ebfn d\u1ea1ng c\u1ee5c b\u1ed9, l\u00e0m gi\u1ea3m tu\u1ed5i th\u1ecd c\u1ee7a c\u1ee5m l\u1eafp r\u00e1p. C\u00e1c ti\u00eau chu\u1ea9n c\u00f4ng nghi\u1ec7p nh\u1ea5n m\u1ea1nh \u0111i\u1ec1u n\u00e0y \u0111\u1ec3 tu\u00e2n th\u1ee7 c\u00e1c h\u1ec7 s\u1ed1 an to\u00e0n, th\u01b0\u1eddng khuy\u1ebfn ngh\u1ecb bi\u00ean \u0111\u1ed9 an to\u00e0n th\u1ea5p h\u01a1n 10-20% so v\u1edbi k\u00edch th\u01b0\u1edbc t\u1ed1i \u0111a \u0111\u1ec3 b\u00f9 tr\u1eeb dung sai s\u1ea3n xu\u1ea5t v\u00e0 s\u1ef1 gi\u00e3n n\u1edf nhi\u1ec7t.<\/p>\n
\u0110\u1ec3 l\u00e0m r\u00f5 kh\u00e1i ni\u1ec7m n\u00e0y, h\u00e3y xem x\u00e9t v\u00edt t\u00e1n \u0111inh FH-M6 nh\u01b0 m\u1ed9t v\u00ed d\u1ee5 th\u1ef1c t\u1ebf. Lo\u1ea1i v\u00edt n\u00e0y c\u00f3 \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i \u0111\u1ea7u l\u00e0 8,2 mm, v\u00e0 k\u00edch th\u01b0\u1edbc l\u1ed7 t\u1ed1i \u0111a \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh trong ph\u1ea7n g\u1eafn k\u00e8m l\u00e0 6,6 mm. Trong c\u1ea5u h\u00ecnh n\u00e0y, t\u1ea5m v\u1eadt li\u1ec7u n\u1ec1n, n\u01a1i \u0111inh t\u00e1n \u0111\u01b0\u1ee3c \u00e9p v\u00e0o, \u0111\u00f3ng vai tr\u00f2 l\u00e0 y\u1ebfu t\u1ed1 ph\u00e2n t\u00e1n t\u1ea3i tr\u1ecdng. L\u1ed7 nh\u1ecf h\u01a1n trong ph\u1ea7n g\u1eafn k\u00e8m \u0111\u1ea3m b\u1ea3o r\u1eb1ng v\u00edt kh\u00f4ng d\u1ec5 b\u1ecb tu\u1ed9t ra, v\u00ec l\u1ef1c \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed5 tr\u00ean to\u00e0n b\u1ed9 \u0111\u1ed9 d\u00e0y c\u1ee7a t\u1ea5m v\u00e0 khu v\u1ef1c xung quanh \u0111inh t\u00e1n.<\/p>\n
N\u1ebfu l\u1ed7 tr\u00ean chi ti\u1ebft g\u1eafn k\u00e8m \u0111\u01b0\u1ee3c m\u1edf r\u1ed9ng \u0111\u1ebfn 8,2 mm ho\u1eb7c l\u1edbn h\u01a1n, t\u1ea3i tr\u1ecdng s\u1ebd t\u00e1c \u0111\u1ed9ng tr\u1ef1c ti\u1ebfp l\u00ean d\u1ea3i v\u1eadt li\u1ec7u h\u1eb9p \u0111\u01b0\u1ee3c k\u1eb9p ch\u1eb7t v\u00e0o \u0111\u1ea7u \u0111inh t\u00e1n. C\u1ea5u h\u00ecnh n\u00e0y l\u00e0m t\u0103ng nguy c\u01a1 b\u1ecb bung ra, \u0111\u1eb7c bi\u1ec7t l\u00e0 d\u01b0\u1edbi t\u1ea3i tr\u1ecdng dao \u0111\u1ed9ng, n\u01a1i v\u00edt c\u00f3 th\u1ec3 xoay ho\u1eb7c l\u1eafc. Th\u1eed nghi\u1ec7m theo c\u00e1c ti\u00eau chu\u1ea9n ASTM ho\u1eb7c ISO th\u01b0\u1eddng cho th\u1ea5y r\u1eb1ng c\u00e1c l\u1ed7 qu\u00e1 kh\u1ed5 nh\u01b0 v\u1eady l\u00e0m gi\u1ea3m \u0111\u1ed9 b\u1ec1n k\u00e9o ra t\u1edbi 50%, nh\u1ea5n m\u1ea1nh t\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c tu\u00e2n th\u1ee7 c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt.<\/p>\n
M\u1ed9t kh\u00eda c\u1ea1nh kh\u00e1c l\u00e0 quy tr\u00ecnh l\u1eafp \u0111\u1eb7t: \u0110inh t\u00e1n \u00e9p th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t b\u1eb1ng c\u00e1c d\u1ee5ng c\u1ee5 th\u1ee7y l\u1ef1c ho\u1eb7c kh\u00ed n\u00e9n, s\u1eed d\u1ee5ng l\u1ef1c c\u00f3 ki\u1ec3m so\u00e1t \u0111\u1ec3 l\u00e0m loe th\u00e2n \u0111inh, t\u1ea1o ra m\u1ed9t ch\u1ed7 ph\u00ecnh gi\u00fap c\u1ed1 \u0111\u1ecbnh n\u00f3 v\u00e0o v\u1eadt li\u1ec7u n\u1ec1n. K\u00edch th\u01b0\u1edbc l\u1ed7 t\u1ed1i \u0111a \u0111\u1ea3m b\u1ea3o s\u1ef1 t\u01b0\u01a1ng th\u00edch v\u1edbi ch\u1ed7 ph\u00ecnh n\u00e0y, ng\u0103n ng\u1eeba c\u00e1c khe h\u1edf c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn l\u1ecfng l\u1ebbo theo th\u1eddi gian.<\/p>\n
So s\u00e1nh c\u00e1c lo\u1ea1i v\u00edt t\u00e1n \u0111inh ti\u00eau chu\u1ea9n nh\u01b0 d\u00f2ng FH v\u1edbi c\u00e1c lo\u1ea1i ch\u1ecbu t\u1ea3i n\u1eb7ng nh\u01b0 HFH cho th\u1ea5y l\u00fd do \u0111\u1eb1ng sau s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 k\u00edch th\u01b0\u1edbc l\u1ed7 t\u1ed1i \u0111a. D\u00f2ng HFH c\u00f3 \u0111\u01b0\u1eddng k\u00ednh \u0111\u1ea7u l\u1edbn h\u01a1n so v\u1edbi FH, cho ph\u00e9p k\u00edch th\u01b0\u1edbc l\u1ed7 t\u1ed1i \u0111a l\u1edbn h\u01a1n t\u01b0\u01a1ng \u1ee9ng trong c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c g\u1eafn k\u1ebft. Thi\u1ebft k\u1ebf n\u00e0y \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c t\u1ea3i tr\u1ecdng cao h\u01a1n v\u00e0 v\u1eadt li\u1ec7u d\u00e0y h\u01a1n, l\u00e0m cho HFH ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1eaft khe nh\u01b0 khung g\u1ea7m \u00f4 t\u00f4 ho\u1eb7c m\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p.<\/p>\n
V\u00ed d\u1ee5, trong khi v\u00edt FH-M6 cho ph\u00e9p l\u1ed7 \u0111\u01b0\u1eddng k\u00ednh 6,6 mm, th\u00ec v\u00edt HFH t\u01b0\u01a1ng \u0111\u01b0\u01a1ng c\u00f3 th\u1ec3 cho ph\u00e9p l\u1ed7 \u0111\u01b0\u1eddng k\u00ednh l\u00ean \u0111\u1ebfn 7,5 mm ho\u1eb7c h\u01a1n, t\u00f9y thu\u1ed9c v\u00e0o t\u1eebng m\u1eabu c\u1ee5 th\u1ec3, do \u0111\u1ea7u v\u00edt \u0111\u01b0\u1ee3c m\u1edf r\u1ed9ng gi\u00fap t\u0103ng \u0111\u1ed9 ch\u1ed3ng ch\u00e9o v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng k\u00e9o ra. S\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y xu\u1ea5t ph\u00e1t t\u1eeb c\u00e1c t\u00ednh to\u00e1n k\u1ef9 thu\u1eadt li\u00ean quan \u0111\u1ebfn \u1ee9ng su\u1ea5t c\u1eaft (\u03c4 = F\/A, trong \u0111\u00f3 F l\u00e0 l\u1ef1c v\u00e0 A l\u00e0 di\u1ec7n t\u00edch), trong \u0111\u00f3 \u0111\u1ea7u v\u00edt l\u1edbn h\u01a1n l\u00e0m t\u0103ng A, do \u0111\u00f3 l\u00e0m gi\u1ea3m \u03c4. Nh\u1eefng so s\u00e1nh nh\u01b0 v\u1eady r\u1ea5t quan tr\u1ecdng khi l\u1ef1a ch\u1ecdn \u1ed1c v\u00edt cho c\u00e1c t\u1ea3i tr\u1ecdng c\u1ee5 th\u1ec3, \u0111\u1ea3m b\u1ea3o r\u1eb1ng lo\u1ea1i \u0111\u01b0\u1ee3c ch\u1ecdn ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c y\u00eau c\u1ea7u c\u01a1 h\u1ecdc c\u1ee7a c\u1ee5m l\u1eafp r\u00e1p.<\/p>\n
Tr\u00ean th\u1ef1c t\u1ebf, c\u00e1c k\u1ef9 s\u01b0 s\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m nh\u01b0 ANSYS \u0111\u1ec3 m\u00f4 ph\u1ecfng c\u00e1c t\u01b0\u01a1ng t\u00e1c n\u00e0y, x\u00e1c minh r\u1eb1ng k\u00edch th\u01b0\u1edbc l\u1ed7 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn h\u1ec7 s\u1ed1 an to\u00e0n, th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf m\u1ee9c 2.0 \u0111\u1ed1i v\u1edbi t\u1ea3i tr\u1ecdng t\u0129nh v\u00e0 cao h\u01a1n \u0111\u1ed1i v\u1edbi t\u1ea3i tr\u1ecdng chu k\u1ef3.<\/p>\n
Trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf, th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt k\u00edch th\u01b0\u1edbc l\u1ed7 t\u1ed1i \u0111a \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u01b0 l\u1eafp r\u00e1p v\u1ecf thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed, th\u00e2n xe \u00f4 t\u00f4 v\u00e0 n\u1ed9i th\u1ea5t h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5. V\u00ed d\u1ee5, trong gia c\u00f4ng kim lo\u1ea1i t\u1ea5m, vi\u1ec7c tu\u00e2n th\u1ee7 gi\u1edbi h\u1ea1n n\u00e0y \u0111\u1ea3m b\u1ea3o c\u00e1c \u0111inh t\u00e1n duy tr\u00ec l\u1ef1c k\u1eb9p d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a chu k\u1ef3 nhi\u1ec7t ho\u1eb7c \u1ee9ng su\u1ea5t c\u01a1 h\u1ecdc.<\/p>\n
C\u00e1c bi\u1ec7n ph\u00e1p t\u1ed1t nh\u1ea5t bao g\u1ed3m:<\/p>\n
C\u00e1c b\u01b0\u1edbc n\u00e0y gi\u00fap t\u0103ng \u0111\u1ed9 tin c\u1eady, gi\u1ea3m thi\u1ec3u khi\u1ebfu n\u1ea1i b\u1ea3o h\u00e0nh v\u00e0 c\u1ea3i thi\u1ec7n tu\u1ed5i th\u1ecd s\u1ea3n ph\u1ea9m. Trong s\u1ea3n xu\u1ea5t quy m\u00f4 l\u1edbn, h\u1ec7 th\u1ed1ng ki\u1ec3m tra t\u1ef1 \u0111\u1ed9ng c\u00f3 th\u1ec3 th\u1ef1c thi c\u00e1c gi\u1edbi h\u1ea1n n\u00e0y, \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n.<\/p>\n
L\u1eddi gi\u1ea3i th\u00edch n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf nh\u01b0 ISO 15973 cho \u0111ai \u1ed1c t\u00e1n \u0111inh v\u00e0 ASTM F879 cho c\u00e1c lo\u1ea1i \u1ed1c v\u00edt h\u1ec7 m\u00e9t, trong \u0111\u00f3 nh\u1ea5n m\u1ea1nh c\u00e1c r\u00e0ng bu\u1ed9c v\u1ec1 k\u00edch th\u01b0\u1edbc \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a m\u1ed1i n\u1ed1i. C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t nh\u01b0 PEM ho\u1eb7c Southco cung c\u1ea5p c\u00e1c b\u1ea3ng d\u1eef li\u1ec7u v\u1edbi c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt n\u00e0y, th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1ed1i chi\u1ebfu v\u1edbi c\u00e1c ti\u00eau chu\u1ea9n NASM ho\u1eb7c MIL cho c\u00e1c \u1ee9ng d\u1ee5ng h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5.<\/p>\n
\u0110\u1ec3 t\u00ecm hi\u1ec3u th\u00eam, h\u00e3y tham kh\u1ea3o c\u00e1c t\u00e0i li\u1ec7u t\u1eeb Vi\u1ec7n S\u1ea3n xu\u1ea5t \u1ed0c v\u00edt C\u00f4ng nghi\u1ec7p (IFI) ho\u1eb7c c\u00e1c t\u1ed5 ch\u1ee9c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng, trong \u0111\u00f3 tr\u00ecnh b\u00e0y chi ti\u1ebft c\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n xem x\u00e9t v\u1ec1 v\u1eadt li\u1ec7u.<\/p>\n
V\u01b0\u1ee3t qu\u00e1 k\u00edch th\u01b0\u1edbc t\u1ed1i \u0111a s\u1ebd l\u00e0m t\u0103ng nguy c\u01a1 b\u1ecb tu\u1ed9t ra, v\u00ec t\u1ea3i tr\u1ecdng t\u1eadp trung v\u00e0o m\u1ed9t d\u1ea3i v\u1eadt li\u1ec7u h\u1eb9p, c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn h\u1ecfng h\u00f3c do l\u1ef1c c\u0103ng ho\u1eb7c rung \u0111\u1ed9ng. Lu\u00f4n tu\u00e2n th\u1ee7 c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n.<\/p>\n
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\u0110\u01b0\u1eddng k\u00ednh \u0111\u1ea7u \u0111inh t\u00e1n l\u1edbn h\u01a1n cho ph\u00e9p k\u00edch th\u01b0\u1edbc l\u1ed7 t\u1ed1i \u0111a l\u1edbn h\u01a1n, v\u00ec ch\u00fang t\u1ea1o ra s\u1ef1 ch\u1ed3ng l\u1ea5p v\u00e0 ph\u00e2n b\u1ed5 t\u1ea3i tr\u1ecdng t\u1ed1t h\u01a1n, nh\u01b0 th\u1ea5y \u1edf c\u00e1c lo\u1ea1i \u0111inh t\u00e1n ch\u1ecbu t\u1ea3i n\u1eb7ng nh\u01b0 HFH so v\u1edbi d\u00f2ng FH ti\u00eau chu\u1ea9n.<\/p>\n
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Kh\u00f4ng, \u0111i\u1ec1u \u0111\u00f3 ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1ed9 d\u00e0y v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a v\u1eadt li\u1ec7u c\u01a1 b\u1ea3n; v\u1eadt li\u1ec7u m\u1ecfng h\u01a1n ho\u1eb7c m\u1ec1m h\u01a1n c\u00f3 th\u1ec3 c\u1ea7n c\u00e1c gi\u1edbi h\u1ea1n nghi\u00eam ng\u1eb7t h\u01a1n \u0111\u1ec3 tr\u00e1nh bi\u1ebfn d\u1ea1ng.<\/p>\n
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\u0110\u00fang v\u1eady, n\u00ean khoan l\u1ed7 nh\u1ecf h\u01a1n \u0111\u1ec3 t\u0103ng \u0111\u1ed9 an to\u00e0n, nh\u01b0ng h\u00e3y \u0111\u1ea3m b\u1ea3o ch\u00fang cho ph\u00e9p c\u0103n ch\u1ec9nh ch\u00ednh x\u00e1c v\u00e0 kh\u00f4ng g\u00e2y c\u1ea3n tr\u1edf trong qu\u00e1 tr\u00ecnh l\u1eafp r\u00e1p.<\/p>\n
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S\u1eed d\u1ee5ng th\u01b0\u1edbc \u0111o \u0111\u1ea1t\/kh\u00f4ng \u0111\u1ea1t ho\u1eb7c th\u01b0\u1edbc \u0111o micromet k\u1ef9 thu\u1eadt s\u1ed1 \u0111\u1ec3 ki\u1ec3m tra; k\u1ebft h\u1ee3p th\u1eed nghi\u1ec7m k\u00e9o theo ti\u00eau chu\u1ea9n ISO \u0111\u1ec3 x\u00e1c minh \u0111\u1ed9 b\u1ec1n c\u1ee7a c\u1ee5m l\u1eafp r\u00e1p.<\/p>\n
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Trong m\u00f4i tr\u01b0\u1eddng c\u00f3 chuy\u1ec3n \u0111\u1ed9ng ho\u1eb7c rung \u0111\u1ed9ng, c\u00e1c l\u1ed7 qu\u00e1 l\u1edbn c\u00f3 th\u1ec3 khu\u1ebfch \u0111\u1ea1i \u1ee9ng su\u1ea5t, d\u1eabn \u0111\u1ebfn m\u1ecfi v\u1eadt li\u1ec7u; th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt n\u00e0y \u0111\u1ea3m b\u1ea3o s\u1ef1 li\u00ean k\u1ebft ch\u1eafc ch\u1eafn \u0111\u1ec3 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd.<\/p>\n<\/div>\n
<\/p>","protected":false},"excerpt":{"rendered":"
Article Outline In the realm of mechanical fastening systems, particularly with press-in rivet fasteners such as rivet nuts and screws, the specification of the “maximum hole size in attached parts” is a critical parameter. This term, often denoted as “Max Hole in Attach Parts,” refers to the largest allowable diameter of the hole in the […]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[220],"tags":[],"class_list":["post-5906","post","type-post","status-publish","format-standard","hentry","category-technical-documentation-and-references"],"_links":{"self":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5906","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/comments?post=5906"}],"version-history":[{"count":2,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5906\/revisions"}],"predecessor-version":[{"id":5908,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5906\/revisions\/5908"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/media?parent=5906"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/categories?post=5906"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/tags?post=5906"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}