{"id":6757,"date":"2025-02-20T12:42:50","date_gmt":"2025-02-20T04:42:50","guid":{"rendered":"https:\/\/xzfastener.com\/?p=6757"},"modified":"2026-06-22T12:43:59","modified_gmt":"2026-06-22T04:43:59","slug":"thread-rolling-process-for-bolts-screws-and-studs","status":"publish","type":"post","link":"https:\/\/xzfastener.com\/vi\/thread-rolling-process-for-bolts-screws-and-studs\/","title":{"rendered":"Quy tr\u00ecnh c\u00e1n ren cho bu l\u00f4ng, \u1ed1c v\u00edt v\u00e0 \u0111inh t\u00e1n"},"content":{"rendered":"

C\u00e1n ren l\u00e0 m\u1ed9t trong nh\u1eefng quy tr\u00ecnh quan tr\u1ecdng nh\u1ea5t trong s\u1ea3n xu\u1ea5t chi ti\u1ebft si\u1ebft ch\u1eb7t. \u0110\u1ed1i v\u1edbi bu l\u00f4ng, \u1ed1c v\u00edt v\u00e0 \u0111inh t\u00e1n, n\u00f3 t\u1ea1o th\u00e0nh c\u00e1c ren b\u00ean ngo\u00e0i b\u1eb1ng c\u00e1ch \u00e9p khu\u00f4n c\u1ee9ng v\u00e0o ch\u1ed7 tr\u1ed1ng. V\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c d\u1ecbch chuy\u1ec3n th\u00e0nh d\u1ea1ng ren thay v\u00ec b\u1ecb lo\u1ea1i b\u1ecf b\u1eb1ng c\u00e1ch c\u1eaft.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi mua, \u0111i\u1ec1u n\u00e0y quan tr\u1ecdng v\u00ec c\u00e1n ren \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n, ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t, t\u1ed1c \u0111\u1ed9 s\u1ea3n xu\u1ea5t, \u0111\u1ed9 v\u1eeba v\u1eb7n c\u1ee7a ren v\u00e0 chi ph\u00ed. Chi ti\u1ebft si\u1ebft ch\u1eb7t c\u00f3 th\u1ec3 c\u00f3 k\u00edch th\u01b0\u1edbc v\u00e0 c\u1ea5p \u0111\u1ed9 ch\u00ednh x\u00e1c, nh\u01b0ng vi\u1ec7c l\u0103n ren k\u00e9m v\u1eabn c\u00f3 th\u1ec3 g\u00e2y ra s\u1ef1 c\u1ed1 khi l\u1eafp \u0111ai \u1ed1c, ch\u00e2n ren y\u1ebfu ho\u1eb7c b\u1ecb t\u1eeb ch\u1ed1i ki\u1ec3m tra.<\/p>\n\n\n\n

Cu\u1ed9n s\u1ee3i l\u00e0m g\u00ec<\/h2>\n\n\n\n

C\u00e1n ren l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh t\u1ea1o h\u00ecnh ngu\u1ed9i. \u0110\u01b0\u1eddng k\u00ednh ph\u00f4i \u0111\u01b0\u1ee3c chu\u1ea9n b\u1ecb th\u1ea5p h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i c\u1ee7a ren cu\u1ed1i c\u00f9ng. C\u00e1n khu\u00f4n sau \u0111\u00f3 nh\u1ea5n bi\u00ean d\u1ea1ng ren v\u00e0o v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

Qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i cho bu l\u00f4ng ti\u00eau chu\u1ea9n, v\u00edt m\u00e1y, v\u00edt t\u1ef1 khai th\u00e1c, \u0111inh t\u00e1n, thanh ren v\u00e0 nhi\u1ec1u b\u1ed9 ph\u1eadn c\u00f3 ren t\u00f9y ch\u1ec9nh.<\/p>\n\n\n\n

Ng\u01b0\u1eddi mua c\u00f3 th\u1ec3 xem x\u00e9t chung \u1ed1c v\u00edt ti\u00eau chu\u1ea9n<\/a> v\u00e0 \u0111\u1ea7y \u0111\u1ee7 s\u1ea3n ph\u1ea9m chi ti\u1ebft si\u1ebft ch\u1eb7t<\/a> khi so s\u00e1nh c\u00e1c t\u00f9y ch\u1ecdn chi ti\u1ebft si\u1ebft ch\u1eb7t c\u00f3 ren.<\/p>\n\n\n\n

C\u00e1n ren v\u00e0 c\u1eaft ren<\/h2>\n\n\n\n

So s\u00e1nh th\u1ef1c t\u1ebf<\/h3>\n\n\n\n
M\u1ee5c<\/th>C\u00e1n s\u1ee3i<\/th>C\u1eaft ch\u1ec9<\/th><\/tr><\/thead>
Ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd<\/td>V\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh b\u1edfi \u00e1p su\u1ea5t<\/td>V\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf b\u1eb1ng c\u00e1ch c\u1eaft<\/td><\/tr>
B\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n<\/td>Th\u01b0\u1eddng m\u01b0\u1ee3t m\u00e0 h\u01a1n<\/td>Ph\u1ee5 thu\u1ed9c v\u00e0o c\u00f4ng c\u1ee5 v\u00e0 \u0111i\u1ec1u khi\u1ec3n c\u1eaft<\/td><\/tr>
Ch\u1ee7 \u0111\u1ec1 g\u1ed1c<\/td>Th\u01b0\u1eddng m\u1ea1nh h\u01a1n do d\u00f2ng ch\u1ea3y h\u1ea1t<\/td>B\u1ec1 m\u1eb7t c\u1eaft c\u00f3 th\u1ec3 t\u1ea1o ra v\u1ebft g\u1ed1c s\u1eafc n\u00e9t h\u01a1n<\/td><\/tr>
T\u1ed1c \u0111\u1ed9 s\u1ea3n xu\u1ea5t<\/td>Nhanh h\u01a1n \u0111\u1ec3 s\u1ea3n xu\u1ea5t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn<\/td>T\u1ed1t h\u01a1n cho c\u00e1c ch\u1ee7 \u0111\u1ec1 c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng th\u1ea5p ho\u1eb7c \u0111\u1eb7c bi\u1ec7t<\/td><\/tr>
Ch\u1ea5t th\u1ea3i v\u1eadt li\u1ec7u<\/td>Th\u1ea5p<\/td>Cao h\u01a1n do c\u1eaft chip<\/td><\/tr>
s\u1eed d\u1ee5ng t\u1ed1t nh\u1ea5t<\/td>Bu l\u00f4ng, \u1ed1c v\u00edt, \u0111inh t\u00e1n, s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t<\/td>S\u1eeda ch\u1eefa, nguy\u00ean m\u1eabu, c\u00e1c b\u1ed9 ph\u1eadn \u0111\u1eb7c bi\u1ec7t<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

C\u00e1n ren th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u01b0a th\u00edch \u0111\u1ec3 s\u1ea3n xu\u1ea5t chi ti\u1ebft si\u1ebft ch\u1eb7t kh\u1ed1i l\u01b0\u1ee3ng. C\u1eaft ren v\u1eabn h\u1eefu \u00edch cho c\u00e1c k\u00edch th\u01b0\u1edbc \u0111\u1eb7c bi\u1ec7t, c\u00e1c m\u1eb7t h\u00e0ng c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng th\u1ea5p ho\u1eb7c c\u00e1c b\u1ed9 ph\u1eadn m\u00e0 vi\u1ec7c c\u00e1n l\u00e0 kh\u00f4ng th\u1ef1c t\u1ebf.<\/p>\n\n\n\n

Ph\u01b0\u01a1ng ph\u00e1p c\u00e1n ch\u1ee7 \u0111\u1ec1 ch\u00ednh<\/h2>\n\n\n\n

C\u00e1n ph\u1eb3ng<\/h3>\n\n\n\n

C\u00e1n khu\u00f4n ph\u1eb3ng l\u00e0 ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn \u0111\u1ed1i v\u1edbi bu l\u00f4ng v\u00e0 \u1ed1c v\u00edt. M\u1ed9t khu\u00f4n \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh, c\u00f2n khu\u00f4n kia chuy\u1ec3n \u0111\u1ed9ng. C\u00e1c cu\u1ed9n tr\u1ed1ng gi\u1eefa c\u00e1c khu\u00f4n, t\u1ea1o th\u00e0nh s\u1ee3i.<\/p>\n\n\n\n

N\u00f3 hi\u1ec7u qu\u1ea3 cho s\u1ea3n xu\u1ea5t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn v\u00e0 k\u00edch th\u01b0\u1edbc ren theo h\u1ec7 m\u00e9t ho\u1eb7c inch th\u00f4ng th\u01b0\u1eddng.<\/p>\n\n\n\n

C\u00e1n khu\u00f4n h\u00ecnh tr\u1ee5<\/h3>\n\n\n\n

C\u00e1n khu\u00f4n h\u00ecnh tr\u1ee5 s\u1eed d\u1ee5ng khu\u00f4n tr\u00f2n. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c ph\u1ea7n ren d\u00e0i h\u01a1n, \u0111inh t\u00e1n, thanh ren ho\u1eb7c c\u00e1c b\u1ed9 ph\u1eadn c\u1ea7n t\u1ea1o ren \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t nhi\u1ec1u h\u01a1n.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi chi\u1ec1u d\u00e0i s\u1ee3i \u0111\u1eb7c bi\u1ec7t ho\u1eb7c k\u00edch th\u01b0\u1edbc kh\u00f4ng chu\u1ea9n, ng\u01b0\u1eddi mua n\u00ean s\u1eed d\u1ee5ng \u1ed1c v\u00edt phi ti\u00eau chu\u1ea9n t\u00f9y ch\u1ec9nh<\/a> v\u00e0 cung c\u1ea5p b\u1ea3n v\u1ebd.<\/p>\n\n\n\n

Ki\u1ec3m so\u00e1t quy tr\u00ecnh ch\u00ednh<\/h2>\n\n\n\n

Blank Diameter<\/h3>\n\n\n\n

\u0110\u01b0\u1eddng k\u00ednh tr\u1ed1ng l\u00e0 r\u1ea5t quan tr\u1ecdng. N\u1ebfu n\u00f3 qu\u00e1 l\u1edbn, \u00e1p l\u1ef1c l\u0103n s\u1ebd tr\u1edf n\u00ean qu\u00e1 m\u1ee9c v\u00e0 c\u00e1c s\u1ee3i ch\u1ec9 c\u00f3 th\u1ec3 b\u1ecb qu\u00e1 kh\u1ed5. N\u1ebfu n\u00f3 qu\u00e1 nh\u1ecf, s\u1ee3i c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7.<\/p>\n\n\n\n

T\u00ecnh tr\u1ea1ng v\u1eadt ch\u1ea5t<\/h3>\n\n\n\n

V\u1eadt li\u1ec7u ph\u1ea3i ph\u00f9 h\u1ee3p \u0111\u1ec3 t\u1ea1o h\u00ecnh. \u0110\u1ed9 c\u1ee9ng c\u1ee7a d\u00e2y, \u0111\u1ed9 d\u1ebbo, t\u00ecnh tr\u1ea1ng b\u1ec1 m\u1eb7t v\u00e0 qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng c\u00e1n.<\/p>\n\n\n\n

cho \u1ed1c v\u00edt c\u01b0\u1eddng \u0111\u1ed9 cao<\/a>, ki\u1ec3m so\u00e1t v\u1eadt li\u1ec7u v\u00e0 x\u1eed l\u00fd nhi\u1ec7t tr\u1edf n\u00ean quan tr\u1ecdng h\u01a1n.<\/p>\n\n\n\n

T\u00ecnh tr\u1ea1ng ch\u1ebft<\/h3>\n\n\n\n

Khu\u00f4n b\u1ecb m\u00f2n ho\u1eb7c h\u01b0 h\u1ecfng c\u00f3 th\u1ec3 g\u00e2y ra ren th\u00f4, \u0111\u1ed9 ch\u00ednh x\u00e1c b\u01b0\u1edbc ren k\u00e9m, g\u1edd v\u00e0 h\u00ecnh d\u1ea1ng ren kh\u00f4ng nh\u1ea5t qu\u00e1n.<\/p>\n\n\n\n

Lubrication<\/h3>\n\n\n\n

B\u00f4i tr\u01a1n th\u00edch h\u1ee3p l\u00e0m gi\u1ea3m ma s\u00e1t v\u00e0 m\u00e0i m\u00f2n d\u1ee5ng c\u1ee5. B\u00f4i tr\u01a1n k\u00e9m c\u00f3 th\u1ec3 g\u00e2y h\u01b0 h\u1ecfng b\u1ec1 m\u1eb7t ho\u1eb7c ch\u1ea5t l\u01b0\u1ee3ng ren kh\u00f4ng \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n

Khi\u1ebfm khuy\u1ebft c\u00e1n ren th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n
khi\u1ebfm khuy\u1ebft<\/th>Nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3<\/th>R\u1ee7i ro c\u1ee7a ng\u01b0\u1eddi mua<\/th><\/tr><\/thead>
Ch\u1ee7 \u0111\u1ec1 ch\u01b0a ho\u00e0n ch\u1ec9nh<\/td>\u0110\u01b0\u1eddng k\u00ednh tr\u1ed1ng sai ho\u1eb7c \u00e1p su\u1ea5t th\u1ea5p<\/td>\u0110ai \u1ed1c c\u00f3 th\u1ec3 kh\u00f4ng kh\u1edbp \u0111\u00fang c\u00e1ch<\/td><\/tr>
S\u1ee3i qu\u00e1 kh\u1ed5<\/td>L\u1ed7i thi\u1ebft l\u1eadp tr\u1ed1ng qu\u00e1 l\u1edbn ho\u1eb7c ch\u1ebft<\/td>L\u1eafp r\u00e1p ch\u1eb7t ch\u1ebd ho\u1eb7c l\u1ed7i \u0111\u1ed3ng h\u1ed3 \u0111o<\/td><\/tr>
V\u1ebft n\u1ee9t b\u1ec1 m\u1eb7t<\/td>V\u1eadt li\u1ec7u qu\u00e1 c\u1ee9ng ho\u1eb7c \u0111\u1ed9 d\u1ebbo k\u00e9m<\/td>Gi\u1ea3m \u0111\u1ed9 tin c\u1eady c\u1ee7a d\u1ecbch v\u1ee5<\/td><\/tr>
\u0110\u1ed9 ch\u00ednh x\u00e1c cao \u0111\u1ed9 k\u00e9m<\/td>V\u1ea5n \u0111\u1ec1 hao m\u00f2n khu\u00f4n ho\u1eb7c thi\u1ebft l\u1eadp m\u00e1y<\/td>Ch\u1ee7 \u0111\u1ec1 kh\u00f4ng kh\u1edbp<\/td><\/tr>
Kh\u1edfi \u0111\u1ed9ng ren b\u1ecb h\u1ecfng<\/td>V\u1ea5n \u0111\u1ec1 x\u1eed l\u00fd ho\u1eb7c cho \u0103n<\/td>Installation difficulty<\/td><\/tr>
L\u1edbp ph\u1ee7 t\u00edch t\u1ee5 sau khi l\u0103n<\/td>M\u1ea1 d\u00e0y ho\u1eb7c m\u1ea1 k\u1ebdm<\/td>V\u1ea5n \u0111\u1ec1 ph\u00f9 h\u1ee3p v\u1edbi \u0111ai \u1ed1c<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u0110\u1ed1i v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn c\u00f3 ren \u0111\u01b0\u1ee3c ph\u1ee7, h\u00e3y xem l\u1ea1i \u1ed1c v\u00edt tr\u00e1ng kh\u00e1c nhau<\/a> v\u00e0 x\u00e1c nh\u1eadn s\u1ef1 ph\u00f9 h\u1ee3p c\u1ee7a ren sau khi ph\u1ee7.<\/p>\n\n\n\n

\u0110i\u1ec3m ki\u1ec3m tra ng\u01b0\u1eddi mua n\u00ean y\u00eau c\u1ea7u<\/h2>\n\n\n\n

M\u1ed9t k\u1ebf ho\u1ea1ch ki\u1ec3m tra t\u1ed1t n\u00ean bao g\u1ed3m:<\/p>\n\n\n\n

    \n
  1. Ki\u1ec3m tra th\u01b0\u1edbc \u0111o ren<\/li>\n\n\n\n
  2. Pitch verification<\/li>\n\n\n\n
  3. Ki\u1ec3m tra \u0111\u01b0\u1eddng k\u00ednh l\u1edbn v\u00e0 nh\u1ecf<\/li>\n\n\n\n
  4. Ki\u1ec3m tra \u0111\u1ed9 d\u00e0i s\u1ee3i<\/li>\n\n\n\n
  5. Ki\u1ec3m tra tr\u1ef1c quan c\u00e1c v\u1ebft n\u1ee9t ho\u1eb7c g\u1edd<\/li>\n\n\n\n
  6. Ki\u1ec3m tra l\u1eafp r\u00e1p \u0111ai \u1ed1c<\/li>\n\n\n\n
  7. Ki\u1ec3m tra \u0111\u1ed9 d\u00e0y l\u1edbp ph\u1ee7 n\u1ebfu ho\u00e0n th\u00e0nh sau khi l\u0103n<\/li>\n<\/ol>\n\n\n\n

    \u0110\u1ed1i v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn quan tr\u1ecdng, h\u00e3y y\u00eau c\u1ea7u b\u00e1o c\u00e1o ki\u1ec3m tra li\u00ean quan \u0111\u1ebfn s\u1ed1 l\u00f4 v\u00e0 nh\u00e3n \u0111\u00f3ng g\u00f3i.<\/p>\n\n\n\n

    RFQ Danh s\u00e1ch ki\u1ec3m tra cho Ch\u1ed1t ren cu\u1ed9n<\/h2>\n\n\n\n

    Tr\u01b0\u1edbc khi y\u00eau c\u1ea7u b\u00e1o gi\u00e1, h\u00e3y cung c\u1ea5p:<\/p>\n\n\n\n

    RFQ M\u1ee5c<\/th>Nh\u1eefng g\u00ec c\u1ea7n ch\u1ec9 \u0111\u1ecbnh<\/th><\/tr><\/thead>
    Lo\u1ea1i s\u1ea3n ph\u1ea9m<\/td>Bu l\u00f4ng, v\u00edt, \u0111inh t\u00e1n, thanh ren<\/td><\/tr>
    Ti\u00eau chu\u1ea9n<\/td>DIN, ISO, ASTM, ASME, EN, ho\u1eb7c b\u1ea3n v\u1ebd<\/td><\/tr>
    ch\u1ee7 \u0111\u1ec1<\/td>H\u1ec7 m\u00e9t, UNC, UNF, cao \u0111\u1ed9, dung sai<\/td><\/tr>
    Chi\u1ec1u d\u00e0i s\u1ee3i<\/td>To\u00e0n b\u1ed9, m\u1ed9t ph\u1ea7n, hai \u0111\u1ea7u ho\u1eb7c t\u00f9y ch\u1ec9nh<\/td><\/tr>
    V\u1eadt li\u1ec7u<\/td>Th\u00e9p cacbon, th\u00e9p h\u1ee3p kim, th\u00e9p kh\u00f4ng g\u1ec9<\/td><\/tr>
    L\u1edbp<\/td>8.8, 10.9, 12.9, A2-70, B7, ho\u1eb7c c\u1ea5p \u0111\u1ed9 d\u1ef1 \u00e1n<\/td><\/tr>
    K\u1ebft th\u00fac<\/td>\u0110\u1ed3ng b\u1eb1ng, k\u1ebdm, HDG, v\u1ea3y k\u1ebdm, PTFE, kh\u00f4ng g\u1ec9<\/td><\/tr>
    Inspection<\/td>Th\u01b0\u1edbc \u0111o ren, \u0111\u1ed9 kh\u00edt \u0111ai \u1ed1c, b\u00e1o c\u00e1o k\u00edch th\u01b0\u1edbc<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    L\u1eddi khuy\u00ean cu\u1ed1i c\u00f9ng<\/h2>\n\n\n\n

    C\u00e1n ren l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh c\u1ed1t l\u00f5i cho bu l\u00f4ng, \u1ed1c v\u00edt v\u00e0 \u0111inh t\u00e1n. N\u00f3 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t v\u00e0 c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 hi\u1ec7u su\u1ea5t ren \u0111\u00e1ng tin c\u1eady khi v\u1eadt li\u1ec7u, k\u00edch th\u01b0\u1edbc ph\u00f4i, t\u00ecnh tr\u1ea1ng khu\u00f4n v\u00e0 qu\u00e1 tr\u00ecnh ki\u1ec3m tra \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n

    \u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi mua, c\u00e1ch ti\u1ebfp c\u1eadn an to\u00e0n nh\u1ea5t l\u00e0 x\u00e1c \u0111\u1ecbnh c\u00e1c y\u00eau c\u1ea7u v\u1ec1 ti\u00eau chu\u1ea9n ren, dung sai, chi\u1ec1u d\u00e0i, v\u1eadt li\u1ec7u, l\u1edbp ph\u1ee7 v\u00e0 ki\u1ec3m tra tr\u01b0\u1edbc khi s\u1ea3n xu\u1ea5t. \u0110i\u1ec1u \u0111\u00f3 ng\u0103n ng\u1eeba c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 l\u1eafp r\u00e1p tr\u01b0\u1edbc khi c\u00e1c b\u1ed9 ph\u1eadn \u0111\u1ebfn n\u01a1i l\u00e0m vi\u1ec7c.<\/p>\n\n\n\n

    <\/p>","protected":false},"excerpt":{"rendered":"

    Thread rolling is one of the most important processes in fastener manufacturing. For bolts, screws, and studs, it forms external threads by pressing hardened dies against the blank. The material is displaced into the thread shape instead of being removed by cutting. For buyers, this matters because thread rolling affects strength, surface quality, production speed, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[479],"tags":[499],"class_list":["post-6757","post","type-post","status-publish","format-standard","hentry","category-fastener-knowledge-library","tag-fastener-manufacturing-processes"],"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/6757","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/comments?post=6757"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/6757\/revisions"}],"predecessor-version":[{"id":6758,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/6757\/revisions\/6758"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/media?parent=6757"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/categories?post=6757"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/tags?post=6757"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}