June-July 2012

EXPERT COLUMNS

EDITOR'S FORUM
The F-35 factory in Fort Worth, TX. The Pentagon plans to purchase 29 F-35 fighters in 2013 and another1,763 jets over the program’s lifetime as it focuses more on the development of the plane itself, which is happening simultaneously with the development of its production processes, including additive technologies such as EBDM.(Click on photo to enlarge it)(Photo courtesy of Sciaky)

THE LONG AND WINDING ROAD PART (PART TWO)

Tomorrow is Here: Mike Riley reports on how EBDM could be the mother lode that Uncle Sam is searching for to improve the value of the F-35 fighter while other additive technologies are making impacts in medicine, in electronics, in the arts, and even in the home.

CNC INSIDER
EASY OPERATOR PROGRAMMING . . . YES, I SAID EASY!

EASY OPERATOR PROGRAMMING . . . YES, I SAID EASY!

Randy Pearson of Siemens Industry explains why less time needed for operators to program at the machine means more uptime on the machine.

WELDING TIPS
A pressure vessel being installed inside a nuclear power plant. Welding applications that involve system components that are within the nuclear pressure boundary fall under the purview of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (BPV) Section III: Rules for Construction of Nuclear Facility Components.(Click on photo to enlarge it)

WHAT IS COMMERCIAL GRADE DEDICATION AND WHEN IS IT REQUIRED FOR NUCLEAR GRADE WELDING CONSUMABLES?

Regis Geisler of Lincoln Electric explains how a supplier of nuclear-grade welding consumables can know whether or not they are in compliance with Title 10 and the requirements of the Nuclear Regulatory Commission.

THE SAFE SIDE
A mobile ergonomic workstation used in the dashboard assembly of compact light commercial vehicles at the Peugeot Sevel Nord plant in northern France. Ergonomic design can profoundly reduce the stress on a worker’s body by making small and simple adjustments that tweak the arrangement and load-unloading of parts, tools and other materials.(Click on photo to enlarge it)

A DAY IN THE LIFE OF AN ERGONOMIST

Utility Player: Phil La Duke of Rockford Greene International explores how human factors engineering is used to find the perfect balance of the concurrent priorities between manual labor productivity and worker health and safety.

THE CUTTING EDGE
Whether to cut with oxygen or nitrogen depends on the processes required after cutting the parts. Will they be welded and/or painted? If so, what are the labor, machine and other costs involved in cleaning the oxide edges that result from an oxygen cut? Cleaning the outside geometry of a part might be easy, but the inside geometry may not be simple and may even require an additional machine.(Click on photo to enlarge it)

STEEL CUTTING N2 VS. O2: TO USE OR NOT TO USE, THAT IS THE QUESTION

Shane Simpson of TRUMPF examines why your overall costs are determined by time and secondary operations when cutting with nitrogen assist, and why N2 cutting of gage material should be done on a solid state laser if or a high powered CO2 laser.

FINISHING PASS
While the length of the cycle varies with the product or service, the salesperson’s role is to anticipate that there will be a cycle and to plan an appropriate course of action that will transform leads into sales.(Click on illustration to enlarge it)

PUTTING MORE PULL INTO YOUR MARKETING AND SALES

Stop Pushing and Start Pulling: When it comes to sales, push is the problem, perhaps the biggest problem those in sales face today. John Graham of Graham Communications explains why and shares six important ways to pull customers to you.

METAL FORMING & FABRICATING

Figure 2. The Series 620 high-purity resonator gas switchover with inlet purges and 2 micron filters is used to remove ambient air, moisture and contamination. (Click on photo to enlarge it)

ACQUIRING A SECOND-HAND LASER: GAS AND EQUIPMENT SAVVY ARE REQUIRED FOR HASSLE-FREE SET UP

A factory-reconditioned or second-hand laser is a good way to increase shop productivity at a fraction of the cost of a new machine. John Karpus of CONCOA shares some principles and pointers into the purchase and installation of a second-hand laser that, when incorporated, should assist you in achieving first-class efficiency and operation.

Automation provides consistency during the load and unload cycles because the system does not fatigue, does not take breaks, and it works during shift changes and unmanned shifts.(Click on photo to enlarge it)

ACHIEVING GREATER PRODUCTIVITY WITH MODERN LASER CUTTING SYSTEMS

Frank Arteaga of Bystronic explains how new laser cutting systems address the inefficiencies of older systems and offer much higher competitive value and throughput than the older systems on the market today. He also shows how adding full automation can enable you to take advantage of off shifts and weekend operations to meet the demands of your customers.

LESSONS LEARNED IN CONVERTING MACHINED PARTS TO STAMPED PARTS

LESSONS LEARNED IN CONVERTING MACHINED PARTS TO STAMPED PARTS

During the process of converting fully machined parts to stamped parts with machined features, the lessons learned by medical device manufacturers Aragon Surgical and Avantis Medical Systems and firearms manufacturer Smith & Wesson show how each step plays an important role in moving a part from concept to completion at the blazing speeds now considered normal at Connecticut Spring & Stamping.

Water injection capability is designed to reduce the cost of cutting stainless steel and aluminum while improving edge quality and reducing dross formation.  Water injection cutting offers cutting speeds up to 100 percent faster than gas-shielded systems. This ESAB Sabre DX with an m3 system at the Jacquet Mid Atlantic facility in Charlotte allows the torch to switch automatically between standard dual-gas cutting and water-injected plasma cutting.(Click on photo to enlarge it)

WATER INJECTION PLASMA CUTTING REDUCES COSTS FOR JACQUET

Jacquet Metals, a fabricator of stainless steel and nickel alloy plates and parts recently purchased upgrades from ESAB to four plasma cutting machines to cut rings, discs, and shapes with clean cuts and high edge quality for metal distributors, fabricators in the chemical and petrochemical processing industries, the power generation industry and water waste treatment facilities.

Replacing costly carbide blades with specialty bi-metal blades actually yields faster cutting performance at a lower price in some cases with the right parameters. New carbide engineering designs are also giving relief to shops that considered adding a shift, purchasing a new machine or expanding their building. Boosting productivity by matching the right blade to the material can, in some cases, postpone or eliminate these capital expenses. (Click on photo to enlarge it)

SWEETEN YOUR BOTTOM LINE: WAYS TO DO MORE WITH LESS

Small changes in sawing can yield significant time and cost savings. Dale Petts of Simonds International shares some ways to avoid unnecessary expenses by understanding the true cost of your operation.

WELDING

The SVHC system uses the PB-MB-1 plasma torch station to integrate the arc-voltage sample and hold feature, pneumatically balanced tool-tip sensing, magnetic breakaway crash protection, and an encoder for accurate Z-axis position control.(Click on photo to enlarge it)

SMART VOLTAGE HEIGHT CONTROL SYSTEM FOR PLASMA ARC CUTTING

This new system from ESAB integrates arc voltage height control, Z-axis motion control, and complete plasma process control to lead the way to higher productivity and lowest overall cost-per-part.

An automatic height control system sets and maintains the optimum torch height during hole cutting. A PB-MB-1 Plasma Station features an encoder that accurately measures the torch height as it retracts from the plate. The CNC uses this distance information to maintain the proper height while cutting a small hole, without relying on arc voltage. This eliminates the effects of arc voltage delay, electrode wear, and slug dropouts, which all affect the shape of the hole. The plasma station also includes a pneumatically balanced tool-tip sensor for the lightest possible touch, backed up by an electrical clear-the-plate feature for the most accurate initial height sensing.(Click on photo to enlarge it)

NEW PRECISION HOLE TECHNOLOGY™ FOR PLASMA CUTTING MACHINES

This new system, which is available on new ESAB cutting machines and retrofits on many existing ESAB machines in the field, uses the best hole cutting techniques in the new Columbus.NET programming software to take advantage of the advanced gas control capabilities in m3 Plasma™ systems. The new technology also utilizes a unique encoder-based height control and the VISION 5x series of CNCs.

The materials Brooklyn Iron Works welds range in thickness from 1/4 to 2-1/2 inches and require multiple weld passes to complete.(Click on photo to enlarge it)

SECOND TIME AROUND IS A CHARM

Brooklyn Iron Works had tried MIG consumables from Bernard years before and didn’t think they were the right fit for their application. But, after keeping an open mind and agreeing to a second trial, their reduced downtime and costs eventually led the structural fabricator to convert all of their MIG guns and consumables over to Bernard.

There are two primary differences between the processes. Oxy-fuel cuts with a 0 deg bevel, but the swirl of the plasma gas inherently creates a bevel on one side of the cut. High precision plasma cuts with 0 deg to 2 deg bevel and standard plasma cuts with a bevel greater than 3 deg. Depending on tolerance requirements, oxy-fuel may offer better parts fit without grinding . . . but then again, plasma produces a much smaller HAZ. Depending on weld procedure requirements, any thermally cut part may require grinding to remove the HAZ.(Click on photo to enlarge it)

COMPLEMENTARY CUTTING: EVALUATING AUTOMATED PLASMA & OXY-FUEL PROCESSES

Each process has clear-cut advantages, but John Henderson and Dirk Ott of Victor Technologies explore where the real difference lies: in the major cost influences of equipment, consumables, cutting speed, installation, maintenance and cut quality.

Safety in Gas Welding and Cutting:
Protecting Against Fumes, Heat and Noise

Safety precautions when working with gases and regulators are not the only potential health hazards in the welding environment. Paul Mercuri of ESAB explains why a careful welder must also consider the effects of fumes, heat rays/sparks and noise on individual health and the working environment.

SAFETY IN GAS WELDING & CUTTING – USING CAUTION WITH GASES CAN SAVE LIVES

SAFETY IN GAS WELDING & CUTTING – USING CAUTION WITH GASES CAN SAVE LIVES

Gas welding, cutting and heating apparatus are extremely useful tools for a variety of work and hobby applications. But Paul Mercuri of ESAB explains why any procedure that uses oxygen or other flammable gases in the presence of flame carries significant risks. He warns that every worker, from beginner to seasoned professional, needs to be constantly mindful of safety precautions.

METAL CUTTING

As carbon-fiber tapes are almost completely non-elastic, they must be built up in two-dimensional curved shapes from narrow carbon-fiber strips, with precision integration of the process.(Click on photo to enlarge it)

TAPE LAYING, FIBER PLACEMENT AND THE CNC

The composite manufacture of aircraft parts requires an integrated, tailored process chain. This is the main reason many of the supply system partners in the aerospace industry prefer to rely on CNC machine automation solutions. The CNC functionality of the Sinumerik 840D from Siemens Industry guarantees controlled, stable processes.

The ECM process is used to deburr components only at the points where material needs to be removed, and without it having any mechanical or thermal impact on the workpiece.(Click on this photo to enlarge it)

NO MORE NECESSARY EVIL

Again and again, deburring causes the economic viability of an entire optimized machining process to decline because this operation has not been included in the process stream from the start. But not any more. Oliver Hagenlocher of EMAG explains how a new electro-chemical machining process is changing all of that.

TOOLING & WORKHOLDING

Typical materials that Bayside Machine encounters include 1018, 1020, 1045 steels, 304 and 316 stainless steels, brass, and aluminum. Here is a 6061 aluminum conveyer position plate being tapped in the shop.(Click on photo to enlarge it)

GREAT BANG FOR THE BUCK

The industry’s first high performance general purpose tap from Emuge scores big with Bayside Machine Corporation, a machine shop that serves the paper, painting and food markets.

HOW NEW SPINDLE CONNECTION MAXIMIZES METAL REMOVAL

HOW NEW SPINDLE CONNECTION MAXIMIZES METAL REMOVAL

From Weakest Link to Machining Superstar: The new KM4X™ design from Kennametal can perform from low-speed/high torque to high-speed/low torque when milling, drilling, and turning a wide range of materials to get the absolute most out of your production equipment.

A lower machining cost per hole is the primary feature of the new cutting tool concept for steel. In addition the shorter machining times, better durability and reliability, simplicity in application and getting started, the tool economy is advantageous through the re-conditioning potential and facilities of the drill.(Click on photo to enlarge it)

A HUGE LEAP FORWARD IN DRILLING STEEL

Christer Richt of Sandvik Coromant examines how a new innovative cutting tool concept elevates hole-making performance in steel.

Note the fixture being used for drilling this large motor component. Instead of simply using a cutting tool only for its intended machining operation, Bradley's improved its drilling operations by using Seco tools and always considering how each tool might apply to other cutting procedures.(Click on photo to enlarge it)

SHOP THINKS OUTSIDE THE CUTTING TOOL BOX

Bradley’s is one shop that refuses to limit its part processing capabilities by using a cutting tool only for its intended machining operation. Working with Seco Tools, the shop always considers how a tool might apply to other cutting procedures – with some pretty dramatic results.

MEASUREMENT & INSPECTION

The exceptional precision of the 798 caliper meets DIN862 linear accuracy and has a .0005 in (0.010 mm) resolution. A fine adjustment and slide lock further ensures precision measurements.(Click on photo to enlarge it)

TOUGH ACT TO FOLLOW

A staple in machine shops across the industry, 798 Electronic Slide Calipers from The L. S. Starrett Company remain among the top instruments in measurement and inspection value. Here’s why.

MAINTENANCE

The MagnaShear™ motor brake uses oil shear technology to transmit torque between lubricated surfaces that eliminates wear on friction surfaces and provides longer service life in demanding applications such as the frequent start/stop cycles seen on cranes, hoists, winches, and other overhead material handling equipment. Its patented fluid recirculation system dissipates heat to eliminate heat build-up, which is the most common problem in dry braking systems.(Click on photo to enlarge it)

THE BRAKE STOPS HERE

Built upon the proven oil shear technology, the innovative design of the MagnaShear™ Motor Brake from Force Control Industries is ideal for use on cranes, hoists, winches and other overhead material handling applications because it lasts longer than conventional brakes, and requires virtually no maintenance.