time motion study

davetucker63
5 Feb 201304:12

Summary

TLDRThe video demonstrates a time and motion study where the task is to assemble a hex bolt with washers and a nut. Initially, it takes 1 minute and 44 seconds to assemble 10 units without a structured approach. After creating a fixture, sorting the parts, and using both hands, the assembly time is reduced to 58.31 seconds. The experiment highlights the efficiency gained through organization and methodical assembly techniques.

Takeaways

  • 🔧 Conducting a time-motion study on an assembly process.
  • 📦 Assembling a unit consisting of a hex bolt, flat washer, lock washer, and quarter-inch nut.
  • 🔄 The goal is to create ten assemblies with mixed-up parts.
  • ⏱️ Using a stopwatch to measure the assembly time.
  • 🤔 The trick is to avoid rushing and not let someone know they're being watched.
  • 🛠️ The initial assembly of ten units took 1 minute and 44 seconds.
  • 🔨 Introducing a fixture and sorting parts by type for efficiency.
  • 👷 Placing the bolt in the fixture and assembling using both hands.
  • ⚡ Reduced assembly time to 58.31 seconds with the new method.
  • 📉 Improvement achieved by adding a fixture, sorting parts, and using both hands.

Q & A

  • What is the purpose of the time and motion study described in the transcript?

    -The purpose is to measure the time it takes to assemble a specific assembly, consisting of a quarter head hex nut, hex bolt, flat washer, lock washer, and a quarter inch nut.

  • How many assemblies are being made in the study?

    -Ten assemblies are being made in the study.

  • What components are used in the assembly?

    -The components used are a quarter head hex nut, hex bolt, flat washer, lock washer, and a quarter inch nut.

  • What is the initial total time recorded for assembling the ten assemblies?

    -The initial total time recorded is 1 minute and 44 seconds (144.03 seconds).

  • What change is made in the second part of the experiment?

    -In the second part of the experiment, a fixture is made, parts are sorted out by type, and both hands are used for assembly.

  • What is the result of the second part of the experiment in terms of time?

    -The time is reduced to 58.31 seconds for assembling the ten assemblies.

  • How is the stopwatch used in the study?

    -The stopwatch is used to measure the time taken to assemble the parts. It is started at the beginning of the assembly and stopped once the assembly is completed.

  • What does the experiment aim to demonstrate?

    -The experiment aims to demonstrate the efficiency gains from using a fixture, sorting parts, and using both hands during assembly.

  • Why might the experiment suggest not letting someone know they are being watched?

    -Not letting someone know they are being watched might help them work at their natural pace without feeling pressured, providing more accurate data on the time required for the task.

  • What is the significance of sorting the parts by type in the second part of the experiment?

    -Sorting the parts by type helps in quickly identifying and assembling the parts, thus reducing the overall assembly time.

Outlines

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Highlights

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Transcripts

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الوسوم ذات الصلة
Time StudyMotion StudyEfficiencyAssemblyExperimentEngineeringOptimizationProductivityManufacturingProcess Improvement
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