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数控加工技术在模具制造中应用的意义
2.1 提高模具的精度
由于在模具制造过程中,对模具的精度的控制至关重要。传统的模具制造需经过一系列的诸如铣、磨、车等加工工艺来完成,加工技术难以保证,而数控加工技术可以保证模具加工的高精度,因此,广泛应用于模具制造中,例如数控铣床、数控成型机床等,除可以满足模具加工的要求外,还可以扩大加工材料的选择范围。
此外,数控加工技术,对于形态复杂及稀有金属等不易加工的材料,可以预先设计进行高精度的加工。
2.2 提高模具生产效率
数控加工技术利用其高速切削工艺,其加工速度相较于传统加工技术可提高 10 倍左右,使得生产出的模具产品具有精度高、稳定好性好等特点。
此外,数控加工技术不仅可以对常见的模具材料进行加工,还可以加工质地较坚硬的材料。
2.3 推进模具制造业向智能化发展
随着信息技术的不断发展,已经渗透到社会生活的各个方面,模具制造业也不例外,它极大的促进了模具制造业想着智能化的方向发展。
在模具的制造过程中通过不断使用信息化技术,不仅可以快速推动模具制造业向智能化发展,而且企业还可以根据收集到的模具制造信息,及时更新系统,以保证最大程度地满足对复杂工艺的技术要求。
此外,通过数控加工技术的信息化管理,还可以打破时间的限制,进行远程控制,实现异地调控操作。
3 、数控加工技术的应用分析
3.1 模具分类
在进行模具加工前,需要进行模具分类,并根据模具种类选择合适的数控机床。数控加工的方式多种多样,为了能取得最佳效果,我们应该合理进行分类,目前,较为常用的数控加工机床有铣加工、电火花切割、车削、磨削加工等,只有将加工所用模具进行合理分类,才能满足生产要求,降低成本。
数控加工是一个整体的流程,只有保证加工的每一道工序都能正常的情况下,才能制造出高质量的模具。
3.2 改进数控技术
随着计算机技术的不断发展,数控加工技术也将随之不断改进和发展。随着数控加工技术的不断提高,模具制造水平也随之提高,例如对于比较复杂的曲面模具,尤其是具有比较细微复杂形状的模具,能够利用数控铣加工及数控电火花加工相结合的方法,实现模具加工的顺利完成。
3.3 优化加工程序
数控编程技术是数控加工技术的重要组成部分,数控加工技术水平对数控加工技术有较大影响,加工程序越好,则加工水平越高,加工效益也就越高。
为保证加工效益,技术人员要综合考量三方面的因素,即加工质量、加工时间及加工程序的应用。因此,对于整个数控编程技术应按照指令并行执行的原则,降低非切削时间,以实现同一时间内的共同并发。
4 、数控加工技术在应用中需注意的问题
对于某些复杂模具,在制造过程中,若原材料选择不当或加工工艺参数设置不当,则有可能产生一系列的不良反应,如模具表面拉毛、铣削过程中出现粘刀现象等。
因此,需要合理进行选材及设置工艺参数。
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