{"id":2399,"date":"2026-03-03T05:45:02","date_gmt":"2026-03-03T05:45:02","guid":{"rendered":"https:\/\/hephaprecision.com\/?p=2399"},"modified":"2026-02-27T08:09:22","modified_gmt":"2026-02-27T08:09:22","slug":"punch-life-improvement","status":"publish","type":"post","link":"https:\/\/hephaprecision.com\/de\/punch-life-improvement\/","title":{"rendered":"Fallstudie: Verbesserung der Stanzdauer bei 280 SPM durch Kantenradiuskontrolle"},"content":{"rendered":"

Bei hohen Stanzgeschwindigkeiten wird ein Ausfall des Stempels selten allein durch Ma\u00dffehler verursacht.<\/p>\n\n\n\n

In dieser Fallstudie zeigen wir, wie ein kontrollierter Kantenradius - und nicht etwa eine engere Toleranz - die Lebensdauer des Stempels bei einer Folgeverbundanwendung mit 280 SPM deutlich verbessert hat.<\/p>\n\n\n\n

Hintergrund<\/h2>\n\n\n\n

Ein Hersteller von Folgeverbundwerkzeugen, der Anschlussklemmen f\u00fcr die Automobilindustrie herstellt, war im Einsatz:<\/p>\n\n\n\n

<\/path><\/svg>280 Anschl\u00e4ge pro Minute<\/span><\/div>
<\/path><\/svg>Geh\u00e4rtetes Werkzeugstahlband<\/span><\/div>
<\/path><\/svg>Kontinuierliche Produktion im Mehrschichtbetrieb<\/span><\/div><\/div>\n\n\n\n

Das Problem war nicht die Ma\u00dfabweichung.<\/p>\n\n\n\n

Das Problem waren vorzeitige Kantenabplatzungen am Stempel nach einem kurzen Produktionszyklus.<\/p>\n\n\n\n

Durchschnittliche Lebensdauer der Werkzeuge: unbest\u00e4ndig und uneinheitlich.<\/p>\n\n\n\n

Erste Analyse<\/h2>\n\n\n\n

Der urspr\u00fcngliche Stempel entsprach der Zeichnungstoleranz:<\/p>\n\n\n\n

<\/path><\/svg>Profilgenauigkeit: innerhalb \u00b10,003 mm<\/span><\/div>
<\/path><\/svg>H\u00e4rte: HRC 60+<\/span><\/div>
<\/path><\/svg>Oberfl\u00e4cheng\u00fcte: akzeptabel<\/span><\/div><\/div>\n\n\n\n

Die mikroskopische Untersuchung ergab jedoch:<\/p>\n\n\n\n

<\/path><\/svg>Extrem scharfe Schneidkante<\/span><\/div>
<\/path><\/svg>Ungleichm\u00e4\u00dfige Mikrogeometrie entlang der Kante<\/span><\/div>
<\/path><\/svg>Lokalisierte Spannungskonzentration<\/span><\/div><\/div>\n\n\n\n

Bei hoher SPM vervielfacht sich die Aufprallkraft.<\/p>\n\n\n\n

Wenn die Kantengeometrie unkontrolliert ist, wird die Kraftverteilung ungleichm\u00e4\u00dfig.<\/p>\n\n\n\n

Die Folge: Das Mikrochipping setzt fr\u00fch ein und verbreitet sich schnell.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Das Kernproblem<\/h2>\n\n\n\n

Bei 280 SPM:<\/p>\n\n\n\n

<\/path><\/svg>Die Schneidkraft wiederholt sich 16.800 Mal pro Minute<\/span><\/div>
<\/path><\/svg>W\u00e4rmestau nimmt zu<\/span><\/div>
<\/path><\/svg>Kantenspannungsspitzen an Profil\u00fcberg\u00e4ngen<\/span><\/div><\/div>\n\n\n\n

Eine theoretisch \u201cperfekte scharfe Kante\u201d wird bei dynamischer Belastung instabil.<\/p>\n\n\n\n

Ma\u00dfhaltigkeit allein ist keine Garantie f\u00fcr Leistung.<\/p>\n\n\n\n

Die Kontrolle der Kantengeometrie ist entscheidend.<\/p>\n\n\n\n

L\u00f6sung: Kontrollierter Kantenradius \u00fcber Profilschleifen<\/a><\/h2>\n\n\n\n

Anstatt die Ma\u00dftoleranz weiter zu versch\u00e4rfen, haben wir sie angepasst:<\/p>\n\n\n\n

<\/path><\/svg>Mikrokantenradius (kontrolliert, nicht zuf\u00e4llig gerundet)<\/span><\/div>
<\/path><\/svg>Glattheit der Profil\u00fcberg\u00e4nge<\/span><\/div>
<\/path><\/svg>Unversehrtheit der Oberfl\u00e4che im Schnittbereich<\/span><\/div><\/div>\n\n\n\n

Herstellungsverfahren:<\/p>\n\n\n\n

<\/path><\/svg>Profilschleifen (PG) f\u00fcr eine pr\u00e4zise Kontrolle der Kantengeometrie<\/span><\/div>
<\/path><\/svg>Kontrollierte Anwendung von Mikroradien<\/span><\/div>
<\/path><\/svg>Kontrollierte Anwendung von Mikroradien<\/span><\/div>
<\/path><\/svg>Vollst\u00e4ndige dimensionale Pr\u00fcfung<\/span><\/div><\/div>\n\n\n\n

Die Toleranz liegt bei \u00b10,002 mm.<\/p>\n\n\n\n

\n
\n
\"\"<\/figure>\n<\/div>\n\n\n\n
\n
\"\"<\/figure>\n<\/div>\n <\/div><\/div>\n\n\n\n

Ergebnisse<\/h2>\n\n\n\n

Nach der Umsetzung:<\/p>\n\n\n\n

<\/path><\/svg>Stanzen<\/a> Lebensdauer deutlich erh\u00f6ht<\/span><\/div>
<\/path><\/svg>Kantenabplatzungen reduziert<\/span><\/div>
<\/path><\/svg>Kantenabplatzungen reduziert<\/span><\/div>
<\/path><\/svg>Verbesserte Produktionsstabilit\u00e4t<\/span><\/div><\/div>\n\n\n\n

Die wichtigste Verbesserung war keine wesentliche Ver\u00e4nderung.<\/p>\n\n\n\n

Technische Einblicke<\/h2>\n\n\n\n

Bei Hochgeschwindigkeitsstanzungen \u00fcber 200 SPM:<\/p>\n\n\n\n

<\/path><\/svg>Scharfe Kante \u2260 beste Kante<\/span><\/div>
<\/path><\/svg>Der Mikro-Radius muss mit der Last \u00fcbereinstimmen<\/span><\/div>
<\/path><\/svg>Geometrie\u00fcberg\u00e4nge sind genauso wichtig wie Dimensionen<\/span><\/div>
<\/path><\/svg>Profilschleifen bietet bessere Kantenkontrolle als konventionelles Schleifen<\/span><\/div><\/div>\n\n\n\n

Bei Folgeverbundwerkzeugen sollte die Kantenkonstruktion unter dynamischer Belastung und nicht nur unter statischer Messung bewertet werden.<\/p>\n\n\n\n

Wenn es darauf ankommt<\/h2>\n\n\n\n

Dieser Ansatz ist besonders wichtig f\u00fcr:<\/p>\n\n\n\n

<\/path><\/svg>Stanzwerkzeuge f\u00fcr die Automobilindustrie<\/span><\/div>
<\/path><\/svg>Stanzwerkzeuge f\u00fcr die Automobilindustrie<\/span><\/div>
<\/path><\/svg>Verbinder Folgeverbundwerkzeuge<\/span><\/div>
<\/path><\/svg>Werkzeugbaubetriebe mit unbest\u00e4ndiger Lebensdauer der Werkzeuge<\/span><\/div><\/div>\n\n\n\n

Schlussfolgerung<\/h2>\n\n\n\n

Wenn Ihre Stanze \u00fcber 200 SPM arbeitet und Erfahrungen:<\/p>\n\n\n\n

<\/path><\/svg>Kantenabsplitterung<\/span><\/div>
<\/path><\/svg>Widerspr\u00fcchliches Leben<\/span><\/div>
<\/path><\/svg>Pl\u00f6tzliche Fraktur<\/span><\/div>
<\/path><\/svg>Instabile Produktion<\/span><\/div><\/div>\n\n\n\n

Das Problem ist nicht unbedingt die Toleranz.<\/p>\n\n\n\n

Es kann sich um eine Randkontrolle handeln.<\/p>\n\n\n\n

Das Profilschleifen erm\u00f6glicht eine kontrollierte Bearbeitung - nicht nur eine genaue Bearbeitung.<\/p>\n\n\n\n

Technische Konsultation<\/h2>\n\n\n\n

Wenn Sie eine \u00e4hnliche Instabilit\u00e4t der Werkzeugstandzeit bei Hochgeschwindigkeits-Stanzanwendungen feststellen, senden Sie uns Ihre Zeichnung f\u00fcr eine technische \u00dcberpr\u00fcfung.<\/p>\n\n\n\n

Wir k\u00f6nnen bewerten:<\/p>\n\n\n\n

<\/path><\/svg>Eignung der Kantengeometrie<\/span><\/div>
<\/path><\/svg>Eignung der Kantengeometrie<\/span><\/div>
<\/path><\/svg>Optimierung des Herstellungsprozesses<\/span><\/div><\/div>\n\n\n\n

Wir sind eine Erweiterung Ihres Werkzeugbaus - nicht nur ein Lieferant f\u00fcr die Bearbeitung.<\/p>","protected":false},"excerpt":{"rendered":"

At high stamping speeds, punch failure is rarely caused by dimension error alone. In this case study, we share how controlled edge radius \u2014 not tighter tolerance \u2014 improved punch life significantly in a 280 SPM progressive stamping application. A progressive die toolmaker producing automotive connector terminals was running at: The issue was not dimensional […]<\/p>","protected":false},"author":1,"featured_media":2400,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"#gspb_iconsList-id-gsbp-7bb0053.gspb_iconsList .gspb_iconsList__item__text{margin-left:15px}#gspb_iconsList-id-gsbp-7bb0053.gspb_iconsList .gspb_iconsList__item{display:flex;flex-direction:row;align-items:center;position:relative}#gspb_iconsList-id-gsbp-3ac2dc5.gspb_iconsList .gspb_iconsList__item svg path,#gspb_iconsList-id-gsbp-52b3e07.gspb_iconsList .gspb_iconsList__item svg path,#gspb_iconsList-id-gsbp-73fdf73.gspb_iconsList .gspb_iconsList__item svg path,#gspb_iconsList-id-gsbp-77f1ae9.gspb_iconsList .gspb_iconsList__item svg path,#gspb_iconsList-id-gsbp-787c413.gspb_iconsList .gspb_iconsList__item svg path,#gspb_iconsList-id-gsbp-7bb0053.gspb_iconsList 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