{"id":2266,"date":"2026-05-12T16:30:37","date_gmt":"2026-05-12T08:30:37","guid":{"rendered":"https:\/\/tigweldingaluminum.com\/?post_type=cxb_products&p=2266"},"modified":"2026-05-13T14:22:44","modified_gmt":"2026-05-13T06:22:44","slug":"stamping-brackets","status":"publish","type":"cxb_products","link":"https:\/\/tigweldingaluminum.com\/de\/products\/stamping-brackets\/","title":{"rendered":"Reliable 316L Precision Stamping Brackets Medical Grade Stamped Metal Brackets"},"content":{"rendered":"

Progressive Die Stamped 316L Medical Instrument Brackets\uff1a<\/h2>\n\n\n\n

Kunde: <\/strong>MT,Instruments (ISO 13485 certified; USA)<\/p>\n\n\n\n

Industrie: <\/strong>Medical Device Manufacturing<\/p>\n\n\n\n

Herausforderung: <\/strong><\/p>\n\n\n\n

The client needed 250;000 units per year of small (65mm \u00d7 38mm \u00d7 12mm) stamping brackets for a reusable surgical instrument sterilizer rack. <\/p>\n\n\n\n

The bracket held critical alignment pins and was exposed to:<\/p>\n\n\n\n

 Daily autoclave sterilization (steam at 134\u00b0C \/ 273\u00b0F; high humidity).<\/p>\n\n\n\n

Hospital grade disinfectants (bleach and quaternary ammonium compounds).<\/p>\n\n\n\n

 Physical impact from repeatedly loading heavy surgical trays.<\/p>\n\n\n\n

The original part was machined from solid 316L bar stock. <\/p>\n\n\n\n

While functional; machining had three major problems:<\/strong><\/p>\n\n\n\n

1. Cost:<\/strong> $4.20 per unit (too expensive for a semiconsumable bracket).<\/p>\n\n\n\n

2. Lead time:<\/strong> 8 weeks for 5;000 units (machining was too slow).<\/p>\n\n\n\n

3. Material waste:<\/strong> 65% of the 316L bar was turned into chips and scrap.<\/p>\n\n\n\n

MT requested: stamping brackets alternative at \u2264$1.80 per unit; with zero porosity; corrosion resistance equal to machined 316L; and a smooth; cleanable surface (no crevices for bacterial growth).<\/p>\n\n\n\n

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The Flow Wing Metal Execution<\/strong>:<\/p>\n\n\n\n

Step 1: Design for Stamping (DFS) Engineering<\/strong><\/p>\n\n\n\n

Flow Wing Metal’s engineering team reviewed the 3D model and redesigned the stamping brackets:<\/p>\n\n\n\n

 Material change removed: Replaced machined bar with 1.2mm thick 316L stainless steel coil (fullhard temper for springback control; then annealed poststamp).<\/p>\n\n\n\n

 Geometry optimization: Added 0.5mm fillets to all internal corners (previously sharp 90\u00b0) to prevent stress cracking during forming.<\/p>\n\n\n\n

 Hole tolerances: Specified punched holes at +0.05mm \/ 0.00mm for precision pin alignment (achievable with fineblanking techniques).<\/p>\n\n\n\n

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Step 2: Tooling Fabrication<\/strong><\/p>\n\n\n\n

 Die type: Progressive die with 8 stations.<\/p>\n\n\n\n

 Die material: Powdered metallurgy tool steel (CPM 10V) with titanium aluminumnitride (TiAlN) coating for wear resistance against workhardening 316L.<\/p>\n\n\n\n

 Press: 200ton Bruderer highspeed stamping press.<\/p>\n\n\n\n

 Stations included:<\/strong><\/p>\n\n\n\n

1. Pilot hole piercing<\/p>\n\n\n\n

2. Main hole piercing (\u00d74)<\/p>\n\n\n\n

3. Lancing: partial cut for clearance feature<\/p>\n\n\n\n

4. First 45\u00b0 bend<\/p>\n\n\n\n

5. Second 90\u00b0 bend<\/p>\n\n\n\n

6. Coining: flattening of mounting surface.<\/p>\n\n\n\n

7. Blanking: part cut from carrier strip<\/p>\n\n\n\n

8. Scrap cutoff<\/p>\n\n\n\n

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Step 3: Process Development & Testing<\/strong><\/p>\n\n\n\n

 Trial run: 500 parts produced using mild steel (for die validation).<\/p>\n\n\n\n

 Stainless trial: 1;000 parts in 316L with specialized chlorinated extremepressure stamping lubricant to prevent galling.<\/p>\n\n\n\n

 Adjustments: Increased press speed from 40 to 55 SPM (strokes per minute); added air blast to clear small slugs from piercing stations.<\/p>\n\n\n\n

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Step 4: Post Stamping Brackets Operations<\/strong><\/p>\n\n\n\n

 Degreasing: Automated threestage spray washer (alkaline wash \u2192 rinse \u2192 rust inhibitor rinse).<\/p>\n\n\n\n

 Deburring: Light vibratory tumbling with ceramic triangles (15 minutes) to remove punchentry burrs (<0.05mm remaining).<\/p>\n\n\n\n

 Passivation: Citric acid bath (20% concentration; 25 minutes at 55\u00b0C) to restore chromium oxide layer \u2013 critical for autoclave resistance.<\/p>\n\n\n\n

 Inspection: 100% go\/nogo gauge for pin holes; laser micrometer for bend angle tolerance (\u00b10.5\u00b0).<\/p>\n\n\n\n

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Step 5: Quality Validation<\/strong><\/p>\n\n\n\n

Anforderung<\/strong><\/strong><\/td>Angegeben<\/strong><\/strong><\/td>Flow Wing Result<\/strong><\/strong><\/td>Bestanden\/Nicht bestanden<\/strong><\/strong><\/td><\/tr>
Material<\/td>316L<\/td>316L (certified mill test report)<\/td>Pass<\/td><\/tr>
Flatness<\/td>\u22640.15mm over 65mm<\/td>0.08mm<\/td>Pass<\/td><\/tr>
Hole position tolerance<\/td>\u00b10.05mm<\/td>\u00b10.03mm Cpk 1.67<\/td>Pass<\/td><\/tr>
Internal corner radius<\/td>No cracks (dye penetrant test)<\/td>Zero indications<\/td>Pass<\/td><\/tr>
Salt spray resistance (ASTM B117)<\/td>\u22651;000 hours<\/td>1;200 hours (no red rust)<\/td>Pass<\/td><\/tr>
Autoclave cycle durability<\/td>500 cycles<\/td>800 cycles (no discoloration or pitting)<\/td>Pass<\/td><\/tr>
Unit cost target<\/td>\u2264$1.80<\/td>$1.52<\/td>Pass<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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\u00a0The Result:<\/strong><\/p>\n\n\n\n

 Cost savings: 64% reduction per unit ($4.20 \u2192 $1.52) = $670;000 annual savings for the client.<\/p>\n\n\n\n

 Production speed: From 8 weeks for 5;000 units (machined) to 2 weeks for 25;000 units (stamped).<\/p>\n\n\n\n

 Material utilization: Increased from 35% (machined) to 82% (stamped from coil).<\/p>\n\n\n\n

 Quality: Zero field failures reported after 18 months of hospital use. The stamping brackets survive autoclave cycles without pitting; and the passive layer remains intact.<\/p>\n\n\n\n

 Client outcome: MT converted 14 additional machined stamping brackets to Flow Wing Metal stamped designs over the following 12 months.<\/p>\n\n\n\n

Zeugnis eines Kunden:<\/p>\n\n\n\n

> “Flow Wing Metal didn’t just stamping brackets \u2013 they re-engineered our entire cost structure. The progressive die tooling paid for itself in the first production run. And the part quality? Better than our original machined version.”,<\/p>\n\n\n\n

> \u2013 Senior Purchasing Manager; MT Surgical Instruments<\/p>\n\n\n\n

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Why Choose Flow Wing<\/strong> Metal for Stamping Brackets?<\/h2>\n\n\n\n
 Capability<\/strong><\/td>Str\u00f6mungsfl\u00fcgel<\/strong> Standard<\/strong><\/td><\/tr>
 Press capacity<\/td>Up to 400 tons (progressive, transfer and fine blanking)<\/td><\/tr>
 Maximum part size<\/td>600mm \u00d7 900mm (larger upon request)<\/td><\/tr>
 Material thickness range<\/td>0.1mm (foil) to 8.0mm (plate)<\/td><\/tr>
 Tolerances (standard)<\/td>\u00b10.10mm (blanking), \u00b10.05mm (pierced holes), \u00b10.5\u00b0 (bends)<\/td><\/tr>
 Tolerances (precision)<\/td>\u00b10.025mm with fine blanking or secondary coining<\/td><\/tr>
 Annual volume capability<\/td>100 to 10, 000, 000+ parts<\/td><\/tr>
 Materialien<\/td>Carbon steel, stainless steel (304\/316\/410\/430), aluminum (5052\/6061), copper, brass, galvanized, HSLA, preplated metals<\/td><\/tr>
 Finishing inhouse<\/td>Degreasing, tumbling\/vibratory, passivation, electropolishing, powder coating<\/td><\/tr>
 Certifications<\/td>ISO 9001:2015, ISO 13485 (medical devices under process)<\/td><\/tr>
 Lead time (tooling)<\/td>4-8 weeks (progressive die), 2-3 weeks (single station dies)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Flow Wing Metal transforms sheet metal into precision components \u2013 faster; stronger; and more economical than machining.<\/p>\n\n\n\n

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Progressive Die Stamped 316L Medical Instrument Brackets\uff1a Client: MT,Instruments (ISO 13485 certified; USA) Industry: Medical Device Manufacturing Challenge: The client needed […]<\/p>\n","protected":false},"featured_media":2146,"menu_order":0,"template":"","cxb_product_category":[19],"cxb_product_tag":[181,180,174,170,167,169,165,184,175,178,163,166,168,185,176,177,182,164,183,171,172,173,179],"class_list":["post-2266","cxb_products","type-cxb_products","status-publish","has-post-thumbnail","hentry","cxb_product_category-metal-stamping","cxb_product_tag-aluminum-bracket-stamping","cxb_product_tag-automotive-seat-bracket-stamping-part","cxb_product_tag-bracket-stamping-service","cxb_product_tag-custom-steel-bracket-stamping","cxb_product_tag-electronic-chassis-bracket-stamping","cxb_product_tag-metal-stamping-bracket-design","cxb_product_tag-metal-stamping-die-design","cxb_product_tag-micro-stamped-bracket","cxb_product_tag-oem-metal-bracket-stamping","cxb_product_tag-precision-stamped-brackets-fabrication","cxb_product_tag-precision-stamping-brackets","cxb_product_tag-progressive-die-stamped-bracket","cxb_product_tag-racket-stamping-compound-die","cxb_product_tag-small-stamped-bracket","cxb_product_tag-stainless-bracket-stamping","cxb_product_tag-stainless-steel-bracket-stamping","cxb_product_tag-stamped-electronic-bracket","cxb_product_tag-stamped-metal-brackets","cxb_product_tag-stamped-steel-bracket","cxb_product_tag-steel-bracket-stamping","cxb_product_tag-steel-stamping-bracket","cxb_product_tag-steel-stamping-brackets","cxb_product_tag-u-bracket-stamping"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/tigweldingaluminum.com\/de\/wp-json\/wp\/v2\/cxb_products\/2266","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tigweldingaluminum.com\/de\/wp-json\/wp\/v2\/cxb_products"}],"about":[{"href":"https:\/\/tigweldingaluminum.com\/de\/wp-json\/wp\/v2\/types\/cxb_products"}],"version-history":[{"count":5,"href":"https:\/\/tigweldingaluminum.com\/de\/wp-json\/wp\/v2\/cxb_products\/2266\/revisions"}],"predecessor-version":[{"id":2567,"href":"https:\/\/tigweldingaluminum.com\/de\/wp-json\/wp\/v2\/cxb_products\/2266\/revisions\/2567"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tigweldingaluminum.com\/de\/wp-json\/wp\/v2\/media\/2146"}],"wp:attachment":[{"href":"https:\/\/tigweldingaluminum.com\/de\/wp-json\/wp\/v2\/media?parent=2266"}],"wp:term":[{"taxonomy":"cxb_product_category","embeddable":true,"href":"https:\/\/tigweldingaluminum.com\/de\/wp-json\/wp\/v2\/cxb_product_category?post=2266"},{"taxonomy":"cxb_product_tag","embeddable":true,"href":"https:\/\/tigweldingaluminum.com\/de\/wp-json\/wp\/v2\/cxb_product_tag?post=2266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}