Monthly Archives : July 2018

cnc machining

How does different material impact CNC tooling?

CNC machining offers significant flexibility for the manufacturing industry. However, depending on your manufacturing needs, you need to consider what materials to work with to achieve efficiency and cost-savings. While various machine shops offer guides on material selection, you should be aware of the properties of various materials and their impact on CNC tooling.

With the right approach to material selection, CNC machining translates into an efficient manufacturing process with high-speed production rate and high precision for critical applications in areas such as the aerospace, photonics, environmental monitoring, computer storage, bike, oil and gas, drone, electro-mechanical, and robotics industry.

Understanding the impact of specific materials on CNC tooling improves your productivity since you’ll be able to match the materials with the right tooling style. For instance, wood, plastics, and composite machine are workable with most CNC machining styles, which are equipped with the HSK style tool holders or, ISO/SK/BT style.

However, specialized applications cannot be executed with standard CNC machining styles. Thus, you’ll need specialty tool holders such as the heat shrink and hydro tool holders. While CNC machining has a unique capability for cutting and forming various types of metals and polymer materials, it is impossible to reap maximum benefits from it without proper selection of materials.

Here is what you need to know about the impact of various materials in CNC tooling:

Hard materials

In most cases, machining hard materials, is hard work and demand a combination of high precision and rigid tooling system. Tooling hard materials requires more processing in contrast to normal materials. You need to apply the right strategy and tools at every stage of the manufacturing process. In fact, you have to master it to realize the desired output.

Tool Choices

CNC machinists have the choice of distinct tools; the square end mills, bull nose and ball-end. In some cases, hard materials require you to combine for different stages in the manufacturing process.

For roughing operations, hard materials require the use of the ball end mill. It also the ideal tool for finishing operations. The ball end mill is characterized by a large radius, which helps dissipate heat and force. As a result, it enables you to work at high speeds and to feed the material quickly for you to cut closer to the net shape.

As for large parts with flat floors, you need a bullnose tool. In contrast to the ball end mill, it has a small radius and limited capacity for dissipating heat and force. Thus, it is not ideal for parts that require sharp corners, especially where the floor and the wall meet since it results in chipping.

For such cases, it is best to use a square end mill. Alternatively, you can employ dry machining with air or oil to reduce the chipping since it provides higher spindle speeds.

Tool Geometry

Since hard materials cause rapid wear of tools, a custom machine shop in Denver may demote them to semi-finishing tools or re-sharpen them.

However, since CNC is meant for high-precision manufacturing, the need to cut varying angles and edges using a blunt tool will lead to losses since it has lost its tool geometry.

Tool geometry is critical to precision manufacturing, and a deformed tool should be replaced since it conflicts with the programming specifications for proper operations. CNC manufacturing relies on programming templates for quality control. For instance, CNC programming with a gibs feature is best addressed with a gibs template for the easy selection of tools and tool paths for your manufacturing project.

Such templates are applicable for speeds and feeds on various features and allow you to pick a specific feature and the tool to work with, which comes with predefined speeds and feeds.

The templating process is used for the standardized features of a mold, for example, base plates, gibs, and retainer plates. It is quite helpful when handling hard materials since the process positively impacts time value and tool wear.  With the knowledge of proven patterns and tools when working hard materials is invaluable since it helps you apply templates for fast and efficient cutting process, and, at a cost-effective price.

Since hard materials are dense, they’re full of tension and require soft machining to release the tension. Thus, you must begin by roughing the materials in their annealed state. The soft machining process informs the choice of the type of CNC tooling to apply since you need to optimal material removal.

To make the machining easier, roughing is followed by heat treatment. Since hard materials break into chips when heat-treated, you need inserted cutters to make the chips move fast. Also, they require tool path patterns that can support the fast movement of chips to hasten the process. As an original equipment manufacturer, it is critical to leverage toolpath concepts such as adaptive clearing for the heat treatment process.

With knowledge of how different materials react to heat treatment allows you to select the right tool for the job so you can monitor the twisting of the mold to the required shape.

As such, you need to balance the stock to create enough room to adjust the mold during the finishing process. Also, you should have the right amount of stock to avoid excesses, which would lead to hard machining to remove it.

Since the finishing process comes after the heat-treating process, you need a hard machining plan. Heat-treated materials are harder and create a stronger surface, but brittle, thus challenging to machine.  As a result, you need an assortment of specific tool sizes to achieve the desired stopovers for surface finish.

Part Geometry

In addition, you need to apply specific techniques such as raster passes to make the cutter intersect with the vertical planes made during the roughing process. Denver manufacturing services by Tag Team reference part geometry for the proper configuration of the machining tool to achieve precise surface finishes of high quality.

CNC tooling is flexible, but it is informed by choice of materials you use. While the focus here has been on hard materials, all types of materials have an impact on CNC machining since you have to consider part geometry and the desired designs.

For instance, in the design of complex and detailed parts, a mistake in the choice of CNC tooling could lead to the design of unnecessarily expensive parts in the design phase.


For CNC machining to work properly, the programming of the tools has to map the desired design on the mold. Thus, it is critical to get the right drawings and feed the right tool to produce the right design. However, this should not be a challenge since you can leverage the expertise of Tag Team, a CNC machinist, and precision manufacturing company in Denver. Besides, they specialize in the manufacture of precision components for OEM’s in every industry.

At Tag Team, we have the skills and capacity to work with original equipment manufacturers in developing prototypes. With the capacity to generate over 50,000 components yearly, we can help you with your CNC manufacturing projects.

Manufacturing Sector

Is US Manufacturing Making a Profit?

Many people view the manufacturing industry in the US as one that is untouched by technological changes. This skepticism has led to some questioning whether the manufacturing industry is making a profit in this era.

Addressing concerns on the decline of the manufacturing industry in the US

The manufacturing industry experienced a major hitch during the recession, with more than 5.8 million workers losing their jobs between the years 2000 and 2010. While the 2007-08 recession played a major role, many attributed this to the automation and the introduction of robotics in the manufacturing industry, some thought that this was a sign of the slow growth of the US economy and that the US was losing its grip to support its population.

According to the IMF, the decline does not necessarily indicate a shift in the industry’s size. Instead, sector inequality is what is bringing about this concern. In a recent IMF report, Bertrand Gruss stated that “the decline in manufacturing need not be a source of concern as long as the policy mix is right.”

Though the industry has gone through dark times in the recent past, data from the US Census Bureau shows that it is making profits, with the first quarter of 2018 having a $154 billion, up from the $117.6 billion that had been realized in the last quarter of 2017.

Manufacturing trends behind the industry’s current profits

Labor automation
The use of CNC manufacturing has played a major role in the success of this industry. While this is no magic wand, it has made manufacturing companies more competitive. Automation of processes and the use of digital machines has led to increased productivity as tasks that were done manually at higher costs, and less accuracy are now automated. This has led to a significant drop in manufacturing jobs, but its benefits far outweighs the challenges. Through an efficient production process manufacturers realize an increased output which ultimately leads to increased profits.

Machine outsourcing and leasing
Automation has not come without its fair share of challenges. These human-capacity-saving machinery in most cases have extremely high upfront costs. However, any company can now walk into an Original Equipment Manufacturer and lease any machine. This, coupled with the many financing options has given the industry a major boost. Finance companies are offering to settle not only the machine’s cost but other soft costs such as its installation and freight.

Rising demand
The US remains to be a lucrative market for manufactured items. This has continued to lure both local and international manufacturers to open companies in the US. The streamlining of global logistics has opened up this industry to the world. Technological innovations have made the moving of products and services faster, cheaper, and easier. As such, manufacturers have increased their visibility to potential clients not only in the US but all over the globe. This has seen the demand soar especially in emerging economies. With the increased demand, manufacturers have doubled their output capacity, which explains their profit story over the last few years.

Further, the rise in global demand has led to US manufacturers seeking international allies. In most instances, the US manufacturer works on the design and the products’ functionality while the international partner manages distribution in the country they are in. This has also enabled the manufacturers to widen their global reach and maximize their revenues.

The rise in industry technologies
Manufacturers can now efficiently source for raw materials or deliver their finished products anywhere in the world. They can now have multiple facilities all over the globe, as opposed to the past where facilities were set up depending on the raw materials’ proximity. Through cloud connectivity, such facilities can sync data which is accessed by each facility in real-time.

Evolution in the precision manufacturing sector has made manufacturers maximize their production output, increase the machine’s running times, and reduce downtimes. Through design and simulation tools, manufacturers can validate the products’ design before the final production. This results in the production of perfect products and reduced design time.

Increased diversification to service provision
The integration of automated systems in the production process has necessitated that there be a constant support for optimal efficiency. Case in point is IBM, which actually sells more services than goods. Many Denver manufacturing shops also offer services that are meant to help companies maintain and upgrade their machines. This has led to diversification and eventual realization of profits.

The future of the manufacturing industry in the US

Concerns on whether the US will be able to recoup its position as a leader in the manufacturing industry continue to be a significant bone of contention. The US population is also waiting to see whether the current administration will deliver its promise, that is, ensure that the low and middle-class workers get their manufacturing jobs back. Besides, everyone wonders what impact increased manufacturing automation have on the workforce in the long run.

All indicators show that the manufacturing industry is experiencing a resurgence, and focus is shifting to policies that will accelerate this growth.  Policies such fewer government regulations and investment in infrastructure geared towards enhancing manufacturing are expected.

While manufacturing jobs are returning to the US, it will be necessary for any machine shop Denver, to employ the same skills that were applicable a few years ago. As a result, we will see more efforts from government agencies and corporates to bridge the skills gap. The curriculum also has to be adjusted and relevant programs introduced to ensure more skilled labor is available.

Also, no CNC machinist is going out of business as technological innovations lead to production efficiency and the production of high-quality products. Undeniably, we can only expect more automated processes. This will further be influenced by the evolution of the Internet of Things. We can expect advancement in M2M applications, 3-D printing, and AI equipment. It is hard to find a custom machine shop that is not making use of such technological innovations for products with multiple customization options and fewer flaws.

The manufacturing industry plays a major role in the US economy. Increase in efficiency due to automation will ultimately lead to increased production, time-saving, reduced downtimes due to the use of smart machines will all lead to higher profit amounts and a healthier economy. While these changes are welcome, they will lead to changes in the workforce and better products.