101-introduction to pom
DESCRIPTION
operations managementTRANSCRIPT
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This refers to the transformation of raw materials into finished goods/ or creation of services in order to satisfy the customer needs.
Production involves application of processes by which the inputs can be transformed into desired product (output) of potential utility while improving properties and adding economic values through the best method without compromising on quality.
Different forms of production-
1. Production by extraction or separation
2. Production by modification
3. Production by assembly
PRODUCTION
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Production System
Conversion/Transformation
Output
Goods
services
Inputs 6MsMaterials
Men
Machine
Methods
Management
Money
Adjustment
Monitoring(Feedback)Comparison of actual vs. planned
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1. PRODUCTION AS A WHOLE SYSTEM
2. CONVERSION SUB SYSTEM
3. CONTROL SUB SYSTEM
RELATIONSHIP AMONG VARIOUS DEPARTMENTS
Essentials of Production System
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Nature of Production
1. Production as a system2. Production as creating utility and
adding value3. Production as a transformation process4. Production as an organizational
function
Value = Satisfaction/ Cost
All organizational functions create value in synergy.
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Production Management (PM)
PM means application of all management
principles in production department.
“PM means a process of effective planning,
coordinating and controlling of production.”
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Decisions Taken by Production Managers-
Types of Decisions Area of involvementStrategic Decisions Production processes
TechnologyLayoutsAllocation of resourcesLong range capacity planning
Operating Decisions Production planning systemsIndependent demand inventory systemResource requirements planning systemsShop floor planning and controlMaterial management
Control Decisions Productivity and employeesTotal quality controlControl techniquesMaintenance
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OPERATIONS MANAGEMENT
Operations management deals with all the processes and activities involved with designing, producing and delivering a product/service. It is an extension of PM.
OM is systematic direction and control of the processes and applications.
The operations management functions consists of five sequential steps as below-
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OPERATIONS DIAGRAM
FORECAST
PRODUCTION INPUTS
Unsatisfied Satisfied
CUSTOMER
IDENTIFICATION CUSTOMER NEEDS
ANALYSING RESOURCE AND INTEGRATING PLANFACILITY
SUPPLY INGFACILITY
CONVERSION FACILITY
DISTRIBUTION O/PFACILITY
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1. Identification of customer needs and translation them into a statement of clear forecast
2. Analysis of forecast and integration of facility for a statement of resource plan
3. Execution of resource plans by the suppliers either external or internal and generation of the inputs
4. Movement of inputs into conversion facility that produces the output (physical or service)
5. Delivering goods/services to customers upto their satisfaction with distribution facility
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Characteristics of OM
1. Basic business function to satisfy customer
2. Responsibility to produce and deliver on time
3. Real value addition function
4. Competitive edge to business
5. Decision making is a core function
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Components of Operations Management
1. Product Development
2. Process design and management
3. Supply chain
Significance of POM in Business
1. Line functional area, 70% of total resources
2. Supports corporate strategy
3. Exchanging critical information with different departments
4. Important role in satisfying customers.
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Manufacturing Operations/Processes
Manufacturing processes convert inputs (6 Ms) into tangible
products. They can be classified as follows-
Forming Processes- change the physical shape and size of
the jobs without any removal of material.
1. Casting- pouring the molten material into a moulded cavity and is allowed sufficient time to retain the shape of cavity.
2. Forging- Metal is heated and placed in a die and a compressive force is applied to the metal and finally metal takes the shape of the die. Hot and cold forging.
3. Moulding- Material is fed into heated barrel, mixed and forced into mould cavity where it cools and hardens to the configuration of the mould cavity.
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Manufacturing Operations/Processes
4. Extrusion- it is a process of creating objects of cross sectional profile. Material is pushed through a die, barrel or mandrel of the desired cross section.
5. Stamping- Cold working process. A force is applied to acquire the desired size and shape with the help of die and punch.
6. Embossing-Metal is expanded and pulled and the diameter/ thickness is reduced with the help of applied force.
7. Spinning- It is shaping the metal against a mandrel rotating on high speed lathe.
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Manufacturing Operations/Processes
Machining Processes – In this, usually metal is removed from
the job. This metal removal operation is performed with the
help of machine and a tool that changes the shape of the raw
material, provides the required surface finish and converts
into needed dimensions.
1. Turning- metal is cut using lathe machine
2. Drilling- drilling bit is used to drill
3. Boring- A hole diameter is enlarged using boring bit
4. Etching- also known as chemical milling. Under control chemical reactions, metal is removed from surface
5. Electro-chemical machining- in this electrodes and chemicals are used to remove the metal
6. Laser machining- electric beam is used to remove the metal
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Manufacturing Operations/Processes
Assembly Processes – In this, various components are joined
using various mechanisms as follows-1. Welding- Two pieces of metals are joined using heat or electrical
energy with pressure
2. Soldering- it is a metal joining process with the help of soldering alloy at a lower temp
3. Brazing- It is a metal joining process in which base metal is filled up between the joints by capillary action and solidifies upon cooling
4. Fastening- Screws, nuts and bolts are tightened to join the parts/components. Here, disassembly is also possible
5. Adhesives- various adhesives are used to join similar or dissimilar materials
6. Riveting- A metal bolt or pin having a head on one end, inserted through aligned holes in the pieces to be joined and then hammered on the plain end so as to form a second head.
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Manufacturing Operations/Processes
Treatment Processes – Various treatments are as follows-
Heat Treatment- The alloys are subjected to heat treatment to
obtain desired mechanical properties like toughness,
hardness, or even softness.
1. Annealing- It is a metal softening process in which internal stress are removed by slow cooling the job in the furnace itself to make machining easy.
2. Normalizing- Modified form of annealing but cooled at room temp outside the furnace.
3. Tempering – Metal is reheated to critical point and kept for a particular time at the same temp, then cooled slowly in air to reduce the brittleness and ductility of the metal.
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Manufacturing Operations/Processes
Surface Treatment-
This treatment is applicable to the metals and alloys for the
use of industrial and domestic uses to remove the
deficiencies of tarnishing and corrosion if exposed to
atmosphere. First cleaning of surface with acids, alkaline,
electrolyte etc and then finishing using coating, electroplating,
powder coating, galvanizing, phosphating etc.
Chemical Processes- It is metal removing or metal addition
process. It is usually applied in combination with electrical
process.
Testing Process- used to produce the products as per the
specifications and required quality. Destructive and non-
destructive testing processes
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Service Operations/Processes
Service operations are required to offer a service to end users.
1. Standard Operations/processes
2. Custom services- according to degree of standardization
Mail services, whole sale & retail distribution, Transporters.
Logistics
Health care, travel agents, legal advisors, marriage
consultants
21Recent Trends in POM
1. Change of focus from seller to customer
2. Globalization
3. Production systems- new aspects were introduced by Japanese. Mainly three principles-
a) Quality comes first
b) Continual improvement of product and processes
c) Elimination of wastage
4. Quality Management System (QMS)
5. Supply Chain Management
6. Environmental and Social Issues
7. New Technologies- robotics, CCM, biotechnology, Nano technology, global positing system etc
8. Flexible Manufacturing System (FMS)- latest trend, capacity flexibility, increased productivity, quick shift from one product to another product.
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Current Issues in OM
Coordinate the relationships between mutually supportive but separate organizations.
Optimizing global supplier, production, and distribution networks.
Increased co-production of goods and services