$product->setUrlKey($this->makeUrlKey($product->getName()));
$product->setUrlPath($this->makeUrlKey($product->getName()));
$product->save();

protected function makeUrlKey($str, $replace = array(), $delimiter = '-')
{
    setlocale(LC_ALL, 'en_US.UTF8');
    if (!empty($replace)) {
        $str = str_replace((array)$replace, ' ', $str);
    }

    $clean = iconv('UTF-8', 'ASCII//TRANSLIT', $str);
    $clean = preg_replace("/[^a-zA-Z0-9/_|+ -]/", '', $clean);
    $clean = strtolower(trim($clean, '-'));
    $clean = preg_replace("/[/_|+ -]+/", $delimiter, $clean);

    return $clean;
}