Computer Numerical Control (CNC) machining is an influential procedure utilized in the manufacturing industry. It applies computerized systems to control machines, including lathes, mills, grinders, routers, and various cutting tools. This article delves into this revolutionary technology with a focus on how it deals with low tensile strength metals.
Low tensile strength metals are those whose maximum stress or force they can withstand without breaking under tension is relatively low compared to other metals. This category of metals typically includes aluminium, lead, copper, tin, zinc, and more. Their properties make them ideal for specific applications that require flexibility over hardness.
For understanding why CNC machining plays a vital role when dealing with low tensile strength metals, we first have to appreciate the meaning of “tensile strength.” Tensile strength represents the resistance of a material to breaking under tension. In contrast, high tensile strength metals such as steel and titanium resist deformity and can manage significantly greater amounts of stress before experiencing any form of damage.
CNC Machining Process of Low Tensile Strength Metals
The primary reason why these low tensile strength metals are often preferred lies in their ease of manipulation, malleability, and less energy consumption during machining processes. When utilizing CNC machining technologies to produce parts from these materials, efficiencies increase due to the easy-work nature of low tensile strength metals.
In most cases, the process starts by preparing a digital blueprint—via CAD software—that guides the CNC machine on what steps to undertake while working on raw metal. The dynamics involved might slightly vary depending on whether one is creating original parts or modifying existing ones.
Given their structural elasticity, low tensile strength metals don’t necessitate powerful machinery to work with—a lower feed rate coupled with matching spindle speed usually does the job. Furthermore, unpleasant eventualities like rapid tool wear and tear, breaking of parts, overheating are significantly reduced when working with low tensile strength metals.
Uses of Low Tensile Strength Metals in CNC Machining
Several industries benefit from the utilization of low tensile strength metals manufactured via CNC machining. Here are a few examples:
Electrical Industry: Materials like copper exhibit low tensile strength but excellent conductivity—an ideal characteristic for electrical wiring components.
Automotive and Aerospace Industries: Aluminium—a low-tensile-strength metal—has found massive application due to its lightweight nature over steel counterparts. It offers greater fuel efficiency for cars and airplanes alike without compromising on structural integrity or safety.
Artistry and Jewelry Making: Metals such as silver possess malleability that renders them perfect for intricate designs commonly featured in jewellery or works of art.
Risks Associated with CNC Machining of Low Tensile Strength Metals
Despite the numerous benefits outlined above, one needs to be aware of potential challenges while handling low tensile strength metals. For instance, operators must monitor the cutting process closely as these materials incur risk in having burrs or distorted edges due to their ductility.
In conclusion, it becomes clear how paramount CNC machining is in producing quality products despite dealing with the so-called “weaker” metals concerning tensile strength. Manufacturers using this technology can rest assured of effective, precise results marked by an overall reduction in product lead times. With improvements continuously being made in CNC machining, even more efficient ways of manipulating those valuable low tensile strength metals may soon come to light.
