{"id":821,"date":"2026-10-11T01:44:43","date_gmt":"2026-10-11T01:44:43","guid":{"rendered":"https:\/\/aft-forge.jk-ideaweb.com\/?post_type=product&#038;p=821"},"modified":"2026-10-19T11:50:12","modified_gmt":"2026-10-19T11:50:12","slug":"brake-caliper-4","status":"publish","type":"product","link":"https:\/\/aft-forge.com\/ja\/product\/brake-caliper-4\/","title":{"rendered":"\u30d6\u30ec\u30fc\u30ad\u30ad\u30e3\u30ea\u30d1\u30fc"},"content":{"rendered":"<div id=\"prodNav\">\n<div class=\"tab-content responsive\" style=\"text-align: left;\">\n<div id=\"contentprod0\" class=\"tab-pane active txtNormal\">\n<h2>Forged Aluminum Bicycle Brake Caliper (Twin Bore): Disc Brake Caliper Body Forging<\/h2>\n<p>This forged aluminum bicycle brake caliper is the caliper body forging of a bicycle hydraulic disc brake. A central body spans the rotor, with piston bore bosses on both sides and mounting ears extending at each end to fix the caliper to the frame or fork mount. The body carries piston force and rotor torque under braking, and its stiffness directly affects brake feel.<\/p>\n<p>With a three-dimensional body, thick bore bosses and slender mounting ears, the caliper requires blocker and finisher forging stages. Al Forge Tech (AFT) closed-die hot forges it so bores and ears fill completely with continuous grain flow, then raises strength by in-house T6 heat treatment. Piston bores, fluid passages and mounting holes are machined on 4.5-axis CNC and inspected by CMM and fluorescent penetrant inspection.<\/p>\n<h3>\u4e3b\u306a\u6a5f\u80fd<\/h3>\n<ul>\n<li>Caliper body, twin bore bosses and mounting ears forged in one piece<\/li>\n<li>Blocker and finisher stages ensure complete fill of the bore bosses<\/li>\n<li>Piston bores, fluid passages and mounting holes on 4.5-axis CNC<\/li>\n<li>Fluorescent penetrant and CMM inspection<\/li>\n<\/ul>\n<h2>Forged Aluminum Bicycle Brake Caliper (Twin Bore) Specifications and Manufacturing Capability<\/h2>\n<div class=\"table-container\">\n<table class=\"table table-bordered table-striped\">\n<thead>\n<tr>\n<th>\u5546\u54c1<\/th>\n<th>\u8a73\u7d30<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u88fd\u54c1\u30ab\u30c6\u30b4\u30ea\u30fc<\/td>\n<td>Aluminum Forging Bicycle Parts<\/td>\n<\/tr>\n<tr>\n<td>\u7533\u8acb<\/td>\n<td>Hydraulic disc brake calipers for bicycles and e-bikes<\/td>\n<\/tr>\n<tr>\n<td>\u4e3b\u306a\u30d7\u30ed\u30bb\u30b9<\/td>\n<td>\u9589\u578b\u71b1\u9593\u935b\u9020\uff08\u71b1\u9593\u935b\u9020\u30d7\u30ec\u30b9\uff1a600T\uff5e8,000T\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u7d20\u6750<\/td>\n<td>\u304a\u5ba2\u69d8\u306e\u4ed5\u69d8\u306b\u5408\u308f\u305b\u3066\u9078\u629e\u53ef\u80fd\u30022xxx\u30015xxx\u30016xxx\u30017xxx \u30b7\u30ea\u30fc\u30ba\u306e\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u5408\u91d1\uff08\u4f8b\uff1a2014\u30016061\u30016082\u30017075\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u71b1\u51e6\u7406<\/td>\n<td>\u5408\u91d1\u304a\u3088\u3073\u5f37\u5ea6\u8981\u4ef6\u306b\u3088\u308b\u793e\u5185T4\u51e6\u7406\uff088\u30e6\u30cb\u30c3\u30c8\uff09\u304a\u3088\u3073T6\u4eba\u5de5\u8001\u5316\uff087\u30e6\u30cb\u30c3\u30c8\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u4e8c\u6b21\u52a0\u5de5<\/td>\n<td>CNC\u52a0\u5de5\uff0852\u53f0\u306e\u52a0\u5de5\u30bb\u30f3\u30bf\u30fc\u300130\u53f0\u306e\u65cb\u76e4\uff09\u3001\u30d0\u30ea\u53d6\u308a\u3001\u632f\u52d5\u4ed5\u4e0a\u3052<\/td>\n<\/tr>\n<tr>\n<td>\u8868\u9762\u4ed5\u4e0a\u3052<\/td>\n<td>\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u3001\u967d\u6975\u9178\u5316\uff08\u786c\u967d\u6975\u9178\u5316\u3092\u542b\u3080\uff09\u3001\u30b7\u30e7\u30c3\u30c8\u30d6\u30e9\u30b9\u30c8\u3001\u96fb\u5b50\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u307e\u305f\u306f\u5857\u88c5<\/td>\n<\/tr>\n<tr>\n<td>\u691c\u67fb<\/td>\n<td>\u30b6\u30a4\u30c4CMM\uff084\u53f0\uff09\u3001\u786c\u5ea6\u8a08\u3001\u5206\u5149\u8a08\u3001\u86cd\u5149\u900f\u904e\u691c\u67fb\u30e9\u30a4\u30f3<\/td>\n<\/tr>\n<tr>\n<td>\u5bf8\u6cd5\u3068\u516c\u5dee<\/td>\n<td>\u9867\u5ba2\u3054\u3068\u306b2D\/3D\u56f3\u9762<\/td>\n<\/tr>\n<tr>\n<td>\u54c1\u8cea\u30b7\u30b9\u30c6\u30e0<\/td>\n<td>IATF 16949:2016\u3001ISO 14001:2015<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>Forged Aluminum Bicycle Brake Caliper (Twin Bore) Manufacturing Process<\/h2>\n<ol>\n<li><strong>\u30c9\u30ed\u30fc\u30a4\u30f3\u30b0\u30ec\u30d3\u30e5\u30fc\u3068DFM<\/strong>\u5408\u91d1\u3001\u8377\u91cd\u65b9\u5411\u3001\u91cd\u8981\u306a\u5bf8\u6cd5\u3092\u78ba\u8a8d\u3057\u3001\u305d\u306e\u5f8c QForm \u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u884c\u3057\u3066\u91d1\u5c5e\u6d41\u52d5\u3068\u6b20\u9665\u30ea\u30b9\u30af\u3092\u4e88\u6e2c\u3057\u307e\u3059\u3002.<\/li>\n<li><strong>\u30c7\u30b6\u30a4\u30f3\u3068\u88fd\u9020<\/strong>\u30c0\u30a4\u30bb\u30c3\u30c8\u306e\u6570\uff08\u4f8b\u3048\u3070\u3001\u30d6\u30ed\u30c3\u30ab\u30fc\u30c0\u30a4\u3068\u30d5\u30a1\u30a4\u30cb\u30c3\u30b7\u30e3\u30fc\u30c0\u30a4\uff09\u306f\u90e8\u54c1\u306e\u8907\u96d1\u3055\u306b\u5408\u308f\u305b\u3066\u8a08\u753b\u3055\u308c\u3066\u304a\u308a\u3001\u30c0\u30a4\u306e\u5f62\u72b6\u306f\u643a\u5e2f\u578b3D\u30b9\u30ad\u30e3\u30ca\u30fc\u3067\u78ba\u8a8d\u3055\u308c\u307e\u3059\u3002.<\/li>\n<li><strong><a href=\"https:\/\/aft-forge.com\/ja\/forging-service\/hot-forging-service\/\">\u71b1\u9593\u935b\u9020<\/a><\/strong>600T\uff5e8,000T\u306e\u71b1\u9593\u935b\u9020\u30d7\u30ec\u30b9\u3067\u306e\u9589\u578b\u6210\u5f62\u306b\u3088\u308a\u3001\u90e8\u54c1\u306e\u5f62\u72b6\u306b\u6cbf\u3063\u305f\u9023\u7d9a\u3057\u305f\u7c92\u72b6\u6d41\u304c\u751f\u6210\u3055\u308c\u307e\u3059\u3002.<\/li>\n<li><strong>\u71b1\u51e6\u7406<\/strong>T4\u6eb6\u6db2\u51e6\u7406\u3068T6\u4eba\u5de5\u8001\u5316\u306f\u793e\u5185\u3067\u5b9f\u65bd\u3055\u308c\u3001\u5408\u91d1\u304a\u3088\u3073\u5f37\u5ea6\u8981\u4ef6\u306b\u3088\u3063\u3066\u8a2d\u5b9a\u3055\u308c\u305f\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002.<\/li>\n<li><strong><a href=\"https:\/\/aft-forge.com\/ja\/forging-service\/aluminum-cnc-machining-services\/\">CNC\u52a0\u5de5<\/a> \u305d\u3057\u3066\u4ed5\u4e0a\u3052<\/strong>\u7a74\u3001\u30b9\u30ec\u30c3\u30c9\u3001\u63a5\u5408\u9762\u306f\u6a5f\u68b0\u52a0\u5de5\u3055\u308c\u3001\u305d\u306e\u5f8c\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30d0\u30ea\u53d6\u308a\u3001\u632f\u52d5\u4ed5\u4e0a\u3052\u3001\u30b7\u30e7\u30c3\u30c8\u30d6\u30e9\u30b9\u30c8\u3001\u307e\u305f\u306f\u967d\u6975\u9178\u5316\u304c\u884c\u308f\u308c\u307e\u3059\u3002.<\/li>\n<li><strong>\u691c\u67fb\u3068\u767a\u9001<\/strong>\u5bf8\u6cd5\u3001\u786c\u5ea6\u3001\u5316\u5b66\u7d44\u6210\u306fCMM\u3001\u786c\u5ea6\u8a08\u3001\u5206\u5149\u8a08\u3092\u7528\u3044\u3066\u78ba\u8a8d\u3055\u308c\u3001\u30ed\u30c3\u30c8\u306e\u30c8\u30ec\u30fc\u30b5\u30d3\u30ea\u30c6\u30a3\u306fIATF 16949\u306b\u5f93\u3063\u3066\u7ba1\u7406\u3055\u308c\u3066\u3044\u307e\u3059\u3002.<\/li>\n<\/ol>\n<h2>\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<h3>Why is forging well suited to bicycle disc brake calipers?<\/h3>\n<p>The caliper carries piston force and rotor torque under braking, and a stiffer body gives a more direct brake feel. Forged aluminum is dense and free of the porosity common in castings, so leaks are less likely after machining piston bores and fluid passages. Continuous grain flow also gives higher strength at the same weight, suiting light, high-performance bicycle disc brakes.<\/p>\n<h3>What brake caliper experience does AFT have?<\/h3>\n<p>AFT produces forged and machined brake calipers for two-, three- and four-wheeled vehicles, including bicycle disc brake calipers, motorcycle and powersport calipers, and automotive monobloc caliper forgings. This experience helps evaluate die sets, alloy and machining approach for a new caliper.<\/p>\n<h3>Is heat treatment for the Forged Aluminum Bicycle Brake Caliper (Twin Bore) done in-house?<\/h3>\n<p>Yes. Al Forge Tech operates 8 T4 solution treatment units and 7 T6 artificial aging units on site, so the Forged Aluminum Bicycle Brake Caliper (Twin Bore) can be solution treated, quenched and aged in the same facility before machining and inspection. Keeping heat treatment in-house removes inter-plant transport, reduces lead-time risk and keeps lot traceability within one quality system. Parameters are set according to the alloy grade and your specification.<\/p>\n<h3>How do you keep the Forged Aluminum Bicycle Brake Caliper (Twin Bore) consistent from lot to lot?<\/h3>\n<p>Al Forge Tech runs incoming (IQC), in-process (IPQC) and final (FQC) inspection under IATF 16949:2016, supported by 4 Zeiss CMMs, hardness testers, a spectrometer and a fluorescent penetrant inspection line. First, middle and last pieces of every lot are checked against the die; when wear causes dimensional drift, the die is reworked to keep the Forged Aluminum Bicycle Brake Caliper (Twin Bore) stable across lots.<\/p>\n<h3>How does a forged aluminum Forged Aluminum Bicycle Brake Caliper (Twin Bore) compare with casting or machining from billet?<\/h3>\n<p>Forging shapes aluminum in the solid state under pressure, so the grain flow follows the part contour and the porosity and shrinkage common in castings are avoided. Compared with machining from solid billet, a near-net-shape forging removes less material and shortens machining time. For a Forged Aluminum Bicycle Brake Caliper (Twin Bore) under repeated loads, forging balances strength and weight; the final choice still depends on design loads and volume.<\/p>\n<h2>Request a Quote for the Forged Aluminum Bicycle Brake Caliper (Twin Bore)<\/h2>\n<p>Developing a new Forged Aluminum Bicycle Brake Caliper (Twin Bore) or converting an existing part to aluminum forging? Send us your 3D\/2D drawings, alloy and temper, annual volume and finishing requirements. Our engineering team will reply with a feasibility review, die plan and quotation.<\/p>\n<ul>\n<li>\u30aa\u30f3\u30e9\u30a4\u30f3\u306e\u304a\u554f\u3044\u5408\u308f\u305b\uff1a <a href=\"https:\/\/aft-forge.com\/ja\/contact-us\/\">\u304a\u554f\u3044\u5408\u308f\u305b<\/a><\/li>\n<li>\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9: <a href=\"mailto:aft@aft-forge.com.tw\">aft@aft-forge.com.tw<\/a><\/li>\n<\/ul>\n<p>\u985e\u4f3c\u306e\u30d1\u30fc\u30c4\u3092\u6bd4\u8f03\u3059\u308b\u306b\u306f\u3001\u95b2\u89a7\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/aft-forge.com\/ja\/bicycle-parts-bike-parts\/\">Aluminum Forging Bicycle Parts<\/a>\u00a0\u305d\u3057\u3066\u79c1\u305f\u3061\u306e <a href=\"https:\/\/aft-forge.com\/ja\/category\/applications\/\">\u81ea\u52d5\u8eca\u7528\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u935b\u9020\u7528\u9014<\/a>, \u307e\u305f\u306f\u3001\u3053\u3061\u3089\u3092\u3054\u89a7\u304f\u3060\u3055\u3044 <a href=\"https:\/\/aft-forge.com\/ja\/about-us\/\">\u4f1a\u793e\u7d39\u4ecb<\/a> \u5f53\u793e\u306e\u8a2d\u5099\u304a\u3088\u3073\u8a8d\u8a3c\u306b\u3064\u3044\u3066\u3002.<\/p>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Forged Aluminum Bicycle Brake Caliper (Twin Bore): Disc Brake Caliper Body Forging This forged aluminum bicycle brake caliper is the caliper body forging of a bicycle hydraulic disc brake. A central body spans the rotor, with piston bore bosses on both sides and mounting ears extending at each end to fix the caliper to the frame or fork mount. The body carries piston force and rotor torque under braking, and its stiffness directly affects brake feel. With a three-dimensional body, thick bore bosses and slender mounting ears, the caliper requires blocker and finisher forging stages. Al Forge Tech (AFT) closed-die hot forges it so bores and ears fill completely with [&hellip;]<\/p>\n","protected":false},"featured_media":822,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[24],"product_tag":[],"class_list":["post-821","product","type-product","status-publish","has-post-thumbnail","product_cat-bicycle-parts-bike-parts","first","instock","taxable","shipping-taxable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/aft-forge.com\/ja\/wp-json\/wp\/v2\/product\/821","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aft-forge.com\/ja\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/aft-forge.com\/ja\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/aft-forge.com\/ja\/wp-json\/wp\/v2\/comments?post=821"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aft-forge.com\/ja\/wp-json\/wp\/v2\/media\/822"}],"wp:attachment":[{"href":"https:\/\/aft-forge.com\/ja\/wp-json\/wp\/v2\/media?parent=821"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/aft-forge.com\/ja\/wp-json\/wp\/v2\/product_brand?post=821"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/aft-forge.com\/ja\/wp-json\/wp\/v2\/product_cat?post=821"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/aft-forge.com\/ja\/wp-json\/wp\/v2\/product_tag?post=821"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}