<div id="heading"><h4 class="berschrift4"><a name="mod_1545389104985_0001"></a><a name="Text_mod_1545389104985_0001"></a>Principio 4: </h4></div><p class="HText">Nelle lavorazioni di foratura radiali rispetto all'asse del pezzo, a seguito della forza di spinta dell'utensile si creano forze trasversali che in definitiva agiscono sul mandrino con pinza di serraggio. Tale sollecitazione nella foratura va considerata come l'equivalente della forza di taglio nella tornitura e pertanto deve essere anch'essa limitata. I valori massimi ammessi sono indicati nella tabella seguente.</p><p class="HText">Forza di spinta  che si determina nella foratura [forza trasversale]</p><p class="HText">[perforazione completa, utensile a doppio taglio, direzione di lavorazione 90° trasversali all'asse del mandrino]</p><p class="HText"> </p><div><table cellspacing="0" style="border-collapse:collapse;margin-left:-141.75pt;table-layout:fixed;width:459.25pt;"><colgroup><col style="width:141.75pt;"><col style="width:28.35pt;"><col style="width:35.45pt;"><col style="width:253.7pt;"></colgroup><tr style="height:14.15pt;"><td style="padding:2.85pt 2.85pt 2.85pt 2.85pt;"><p class="HMarginalie"> </p></td><td rowspan="2" style="background-color:transparent;padding:2.85pt 2.85pt 2.85pt 2.85pt;"><p class="Tabelleberschrift"><img alt="Grafik 10" height="26" src="images/image_4.png" width="30"></p></td><td colspan="2" style="background-color:#DDDDDD;padding:2.85pt 2.85pt 2.85pt 2.85pt;"><p class="HHinweisfett">INFORMAZIONE</p></td></tr><tr style="height:26.3pt;"><td style="padding:2.85pt 2.85pt 2.85pt 2.85pt;"><p class="HMarginalie"> </p></td><td style="background-color:#DDDDDD;padding:2.85pt 2.85pt 2.85pt 2.85pt;"><p class="HText"> </p></td><td style="background-color:#DDDDDD;padding:2.85pt 2.85pt 2.85pt 2.85pt;"><p class="HText">Dalla --- fehlender Linktext ---</p></td></tr></table></div><p class="HTabellenende"> </p><p class="dlModulbegrenzung0"> </p><div><table cellspacing="0" class="Tabellenraster" style="border-collapse:collapse;margin-left:0;table-layout:fixed;width:100.0%;"><colgroup><col style="width:162.45pt;"><col style="width:162.6pt;"><col style="width:162.6pt;"></colgroup><tr style="height:19.85pt;"><td style="background-color:#D9D9D9;border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleKopfzeilezentriert">Grandezza del mandrino con pinza di serraggio</p></td><td style="background-color:#D9D9D9;border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleKopfzeilezentriert">Fino a una lunghezza totale del mandrino </p></td><td style="background-color:#D9D9D9;border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleKopfzeilezentriert"> </p></td></tr><tr style="height:19.85pt;"><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">26</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">&lt; 120</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">1800</p></td></tr><tr style="height:19.85pt;"><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">40</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">&lt; 125</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">3600</p></td></tr><tr style="height:19.85pt;"><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">52</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">&lt; 125</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">4200</p></td></tr><tr style="height:19.85pt;"><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">65</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">&lt; 140</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">6000</p></td></tr><tr style="height:19.85pt;"><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">80</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">&lt; 140</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">7200</p></td></tr><tr style="height:19.85pt;"><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">100</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">&lt; 160</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">9000</p></td></tr><tr style="height:19.85pt;"><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">125</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">&lt; 200</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">13000</p></td></tr></table></div><p class="HTabelle"><a name="_Toc227141232"></a>Tabella 13:    Forza trasversale massima consentita</p><p class="dlModulbegrenzung0"> </p><p class="HText">Nei mandrini con esecuzioni più lunghe la forza trasversale massima consentita deve essere ridotta in rapporto alla lunghezza del mandrino. Per esempio grandezza 26 con </p><p class="HText"> </p><p class="dlModulbegrenzung0"> </p>