Another advantage that the voice coil provides is force control, without a feedback device, because the force output at any position in the stroke is directly proportional to the current input. This type of actuation lends itself to generally a higher force density, thus achieving higher strokes and forces in a smaller package size to the solenoid counterparts.
Source: H2W Technologies. Detroit, Michigan — The UAW and General Motors , late Sunday, reached a tentative deal on a new four-year contract, 17 minutes before a union-imposed deadline. Leaders of UAW locals will vote on the deal Wednesday, and if it passes that group, it will go to the full membership for ratification. The agreement not only rewards UAW-GM members for their accomplishments, but it protects them with significant job security commitments. Union officials said they will release contract details on Wednesday after local leaders vote.
FCA employees ratified that contract earlier this month after rejecting an earlier pact. The FCA deal calls for signing bonuses, large raises for newer employees — bringing them closer to the traditional UAW wage, and product guarantees to ensure new work for several plants.
Working with our UAW partners, we developed constructive solutions that benefit employees and provide flexibility for the company to respond to the needs of the marketplace. It delivers expert guidance to maintenance and operations management providing probable root cause enabling proactive steps to streamline the repair process to reduce maintenance, operation and repair costs and minimize equipment downtime.
The Altima launched in Smyrna in , and the popular mid-size sedan has been built there ever since. To date, more than 5. Canton will launch production of the Altima in one week. In the Smyrna plant became the highest-producing automotive assembly plant in North America , with more than , vehicles assembled. Latrobe, Pennsylvania —Expanded capabilities and improved performance combine for outstanding results in the new Top Cut 4 indexable holemaking platform. A multi-problem-solver in one platform, Top Cut 4 is targeted to end users that need one drill that can be applied in a variety of drilling applications and different workpiece materials.
And four true cutting edges result in notably higher speeds and feeds, higher metal-removal rates, and extended tool life. The magnetic field intensity determines the amount of force that can be generated by the solenoid. When the power is turned off, the force drops to zero and the spring returns it to its extended position. The forces are initially high, but as the stroke increases the force decreases. Solenoids — used to open latches or open or close valves — apply a holding or latching force.
Voice Coil Actuator. Low to medium. Constant Force. If your application simply requires opening or closing a valve a solenoid might be an option, however they have limitations when it comes to force linearity and stroke length. Due to the fact that voice coil actuators typically cost more than an off-the-shelf solenoid, many customers try and use a solenoid when a voice coil actuator is the more appropriate solution.
In applications that require a constant force throughout the travel length, a solenoid is insufficient due to the diminished force through the travel — particularly important in oscillatory systems. Another advantage that the voice coil provides is force control, without a feedback device, because the force output at any position in the stroke is directly proportional to the current input.
This type of actuation lends itself to generally a higher force density, thus achieving higher strokes and forces in a smaller package size to the solenoid counterparts. Source: H2W Technologies. Maple Grove, Minnesota — Although modern digital measuring instruments are extremely reliable tools, operating errors may lead to gaps in the quality assurance process. The new Zeiss O-Select optical measuring system closes these gaps in the quality assurance process. With its high level of automation and ease of use, 2D measurements can be completed quickly and reproducibly.
The result is an optical measuring system that is automated during the generation of measuring programs and the measurement itself. Measurements are initiated at the push of a button: the operator places the workpiece in the measuring field and launches the program. Within seconds, the camera captures the contours, analyzes all characteristics, and documents them in Zeiss PiWeb quality data management software. This measuring system is Zeiss' solution for a wide range of industries — from automotive to electronics to plastics.
Zeiss O-Select is particularly suitable for checking the dimensional accuracy of distances, radii, or angles. Examples include punched and formed parts, injection-molded and laser-cut workpieces. Factors such as depth of focus and illumination play a key role in optical measurements. Operators can cause systematic measurement errors without noticing them simply by selecting the wrong settings.
Voice coil actuators or non-commutated DC linear actuators consist of a permanent magnetic field assembly permanent magnets and ferrous steel and a coil assembly. The current flowing through the coil assembly interacts with the permanent magnetic field and generates a force vector perpendicular to the direction of the current. The force vector can be reversed by changing the polarity of current flowing through the coil. Either the coil assembly or permanent magnetic field assembly can be used as the moving member in a voice coil actuator.
The force generated is relatively constant throughout the stroke of the actuator, with minor dips at the beginning and end of the travel length. Voice coil actuators are typically used in focusing applications, oscillatory systems, mirror tilting, and miniature position control. Solenoids consist of a coil that is contained in a ferrous steel housing and a movable steel slug or washer. An electromagnetic field is generated by current being applied to the coil.
The magnetic field intensity determines the amount of force that can be generated by the solenoid. When the power is turned off, the force drops to zero and the spring returns it to its extended position.
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